Martial Law in the United States: Its Meaning, Its History, and Why the President Can’t Declare It
Joseph Nunn
SUMMARY: The concept has never been well understood. What should be clear, however, is that the president lacks the authority to declare it.
Introduction
On August 20, 1942, military police in Honolulu, Hawaii, arrested a man named Harry White. Under normal circumstances, the U.S. military would not have been involved in his case. He was a stockbroker, not a soldier, and neither he nor his business had any connection with the armed forces. Even his alleged crime — embezzlement of funds from a client — was a violation of civilian, not military, law.footnote1_7uasfnz1
But nothing about Hawaii was normal in 1942. It had been under martial law since the Japanese attack on Pearl Harbor in December 1941.footnote2_bf6ogen2 Its courts were closed and replaced with military tribunals. The rules governing everyday life were set not by an elected legislature but by the military governor. The army controlled every aspect of life in the islands, from criminal justice to parking zones and curbside trash removal.footnote3_0p7cqyf3
White was brought before a military provost court. His attorney objected to the court’s jurisdiction, requested a jury trial, and asked for time to prepare a defense. But Major Murrell, the presiding military officer, rejected these motions. Instead, just five days after being arrested, White was tried without a jury, convicted, and sentenced to five years in prison.footnote4_wqx4qpj4
As White’s story illustrates, martial law — a term that generally refers to the displacement of civilian authorities by the military — can be and has been employed in the United States. Indeed, federal and state officials have declared martial law at least 68 times over the course of U.S. history.footnote5_joz5h6q5 Yet the concept has never been well understood. The Constitution does not mention martial law, and no act of Congress defines it. The Supreme Court has addressed it on only a handful of occasions, and the Court’s reasoning in these decisions is inconsistent and vague.footnote6_fd05ocm6 The precedents are also old: the most recent one — in which the Court overturned Harry White’s conviction — was decided almost 75 years ago.
This report aims to clear up the confusion that surrounds martial law. To do so, it draws on recent legal scholarship, the few rules that can be gleaned from Supreme Court precedent, and general principles of constitutional law. It concludes that under current law, the president lacks any authority to declare martial law. Congress might be able to authorize a presidential declaration of martial law, but this has not been conclusively decided. State officials do have the power to declare martial law, but their actions under the declaration must abide by the U.S. Constitution and are subject to review in federal court.
Outside of these general principles, there are many questions that simply cannot be answered given the sparse and confusing legal precedent. Moreover, although lacking authority to replace civilian authorities with federal troops, the president has ample authority under current law to deploy troops to assist civilian law enforcement. Until Congress and state legislatures enact stricter and better-defined limits, the exact scope of martial law will remain unsettled, and the president’s ability to order domestic troop deployments short of martial law will be dangerously broad.
Part I: What is Martial Law?
“Martial law” has no established definition.footnote1_mfja7zw7
In the United States, however, the military’s domestic activities typically fall into one of three categories. First, the armed forces sometimes assist civilian authorities with “non–law enforcement” functions. For example, in the aftermath of Hurricane Katrina in 2005, the military deployed helicopters along the Gulf Coast to carry out search-and-rescue missions that local governments were unable to do themselves. Second, and far less frequently, the military assists civilian authorities with “law enforcement” activities. For example, state and federal troops were deployed to help police suppress the 1992 Los Angeles riots. Third, on some occasions, the military has taken the place of the civilian government. This is what happened in Hawaii during World War II.
Usually, but not always, the term “martial law” refers to the third category. It describes a power that, in an emergency, allows the military to push aside civilian authorities and exercise jurisdiction over the population of a particular area. Laws are enforced by soldiers rather than local police. Policy decisions are made by military officers rather than elected officials. People accused of crimes are brought before military tribunals rather than ordinary civilian courts. In short, the military is in charge.footnote2_zl9lbxg8
This is a dramatic departure from normal practice in the United States. The U.S. military, when allowed to act domestically at all, is ordinarily limited to assisting civilian authorities. Martial law turns that relationship on its head. The displacement of civilian government distinguishes it from other emergency powers, such as the suspension of the writ of habeas corpus. Suspending the writ allows the government to detain and hold individuals without charge but does not imply any unusual role for the armed forces. While a declaration of martial law might be accompanied by a suspension of habeas corpus, they are distinct concepts.
Martial law has not always meant what it does today. The term first appeared in England in the 1530s during the reign of King Henry VIII.footnote3_bfm37m99 At that time and for centuries afterward, martial law generally referred to what is now called “military law.”footnote4_3cdhdeg10 This is the law that applies when a soldier is court-martialed. In the modern United States, it is codified in the Uniform Code of Military Justice.footnote5_nkn2ea711
U.S. law did not recognize martial law as an emergency power until the mid-19th century. Before that time, the idea of allowing military rule in an emergency was considered outrageous — as evidenced by the national reaction to the first declaration of martial law in U.S. history. In December 1814, toward the end of the War of 1812, Gen. Andrew Jackson led a small army in the defense of New Orleans against a much larger invading British force. As part of his defensive preparations, Jackson imposed martial law on the city. He censored the press, enforced a curfew, and detained numerous civilians without charge. Moreover, he continued military rule for more than two months after his famous victory at the Battle of New Orleans had ended any real threat from the British.footnote6_0yfkjz812
Jackson argued that his actions were justified because the government in New Orleans had ceased to function as a result of the impending British attack, leaving the military as the only body able to protect the city. In that situation, he claimed, the military had the authority to do anything that was “necessary” to preserve New Orleans.footnote7_aet0ij213 This was a novel argument, and it did little to explain why he kept the city under martial law for so long.
At the time, almost everyone rejected Jackson’s theory, which perhaps is unsurprising. The founding generation had been deeply suspicious of military power. That suspicion is apparent in the Declaration of Independence, which accuses King George III of rendering “the Military independent of and superior to the Civil power” — and in the Constitution, which pointedly divides the war powers between Congress and the president, and requires that the commander in chief always be a civilian.footnote8_6qa0utf14
In an 1815 case, the Louisiana Supreme Court described Jackson’s conduct in New Orleans as “trampling upon the Constitution and laws of our country.”footnote9_9p05kys15 Similarly, acting Secretary of War Alexander Dallas explained in a letter to Jackson that martial law had no legal existence in the United States outside of the Articles of War, the predecessor to the modern Uniform Code of Military Justice.footnote10_ciqc25516 Overall, the consensus in 1815 was that martial law was simply another term for military law, and that military jurisdiction could extend no further than the armed forces themselves.
After Jackson relinquished control of New Orleans back to its civilian government, the local federal district judge held him in contempt of court, fining him $1,000. Jackson paid the fine, and for the next 27 years, nothing more came of the incident. However, in the early 1840s, the now-aging former president orchestrated a campaign in Congress to refund him the cost of the fine, plus interest.footnote11_3f4sjp117
The ensuing congressional refund debates marked the beginning of a shift in how Americans understood martial law. By pursuing a refund, Jackson hoped to set a precedent for, as one historian put it, “the legitimacy of violating the Constitution and civil liberties in times of national emergency.”footnote12_fd6g1r618 He got exactly what he wanted. Congress enacted the refund bill in February 1844, symbolically endorsing Jackson’s three-month-long imposition of martial law in New Orleans almost 30 years after it had ended.footnote13_kg89bix19
By this time, the United States’ second experience with martial law was already underway in Rhode Island. The so-called “Dorr War” involved a dispute over the state’s first constitution, which severely restricted the right to vote. In 1842, after efforts to reform this system had been rebuffed for years, a large group of Rhode Islanders led by Thomas Dorr organized its own constitutional convention, adopted a new constitution, held elections, and declared itself the true government of Rhode Island. When Dorr rallied his supporters to assert their authority by force, the Rhode Island General Assembly declared martial law and called out the state militia to suppress the rebellion.footnote14_7mp0o6u20
In 1849, the U.S. Supreme Court upheld the legality of Rhode Island’s martial law declaration in Luther v. Borden.footnote15_jt84inf21
Writing for the majority, Chief Justice Roger Taney — of Dred Scott infamy — embraced Andrew Jackson’s idea that martial law allows civilians to be subjected to military jurisdiction in an emergency. He described this power as an essential part of states’ right to defend themselves and suggested that it is inherent to all sovereign governments.footnote16_b41ic6e22 By endorsing the constitutionality of martial law, the Supreme Court finished what Congress had started with the refund bill. The Luther decision makes clear that martial law exists as an emergency power that can be invoked in the United States, at least by state legislatures.footnote17_18qmx8123
But Luther also leaves many questions unanswered. It does not explain the legal basis for martial law, its scope, when it may be declared, or who is authorized to declare it. Indeed, the Supreme Court has never directly held, in Luther or any subsequent case, that the federal government has the power to impose martial law. In one case, the Court suggested in “dicta”— a term for language in a judicial opinion that is not a necessary part of the holding and is not strictly legally binding — that the federal government may declare martial law.footnote18_0y6qrno24 It assumed the same in another case, but only for the purpose of deciding a narrower legal question.footnote19_98elg0w25 Neither of those decisions conclusively affirms that a federal martial law power exists.
Indeed, the Supreme Court has never directly held, in Luther or any subsequent case, that the federal government has the power to impose martial law.
Over time, however, consistency of practice has papered over gaps in the legal theory. The United States made extensive use of martial law during the Civil War, imposing it on border states like Missouri and Kentucky where U.S. forces battled with Confederate insurgents.footnote20_ukfet8w26 The Confederacy, too, relied on it heavily.footnote21_n4n44yd27 The practice did not end with the war: in the 90 years between the start of the Civil War and the end of World War II, martial law was declared at least 60 times.footnote22_tga7sol28 What had been manifestly unconstitutional in the eyes of the Louisiana Supreme Court in 1815 had become a relatively ordinary part of American life by the end of the 19th century.
States — and state governors in particular — have declared martial law far more often than the federal government. In the 1930s, Oklahoma Governor William “Alfalfa Bill” Murray declared martial law at least 6 and perhaps more than 30 times during his tenure.footnote23_jdeigqz29 City mayors and generals within states’ National Guard forces have also declared martial law on occasion. However, no state legislature has done so since the Rhode Island General Assembly in 1842.
Not all of the military deployments under these declarations included what we today consider the defining feature of “martial law” — the displacement of civilian authority. Many cases involved the use of the military to reinforce local police. In other cases, however, troops effectively replaced the police, and in some instances, they were used to impose the will of state or local officials rather than to enforce the law.
State officials have sometimes declared martial law in response to violent civil unrest or natural disasters, such as the Akron Riot of 1900 or the 1900 Galveston hurricane.footnote24_f80t38m30 Far more often, however, they have used martial law to break labor strikes on behalf of business interests. For example, in September 1903, at the request of mine owners, Colorado Governor James Peabody declared martial law in Cripple Creek and Telluride to break a peaceful strike by the Western Federation of Miners. The Colorado National Guard conducted mass arrests of striking workers and detained them in open-air bull pens. The Guard even ignored state court orders to release the prisoners, with one officer declaring, “To hell with the constitution.”footnote25_ukhro9531
States’ use of martial law continued well into the 20th century, reaching a peak in the 1930s — a decade that also saw an increase in the flagrant abuse of this power by governors. In 1933, for example, Georgia Governor Eugene Talmadge declared martial law “in and around” the headquarters building of the state Highway Board as part of a scheme to force out some of the board’s commissioners, whom he had no legal power to remove. This “coup de highway department” was ultimately successful. Remarkably, Talmadge’s successor, Governor Eurith Rivers, tried to do the same thing in 1939, but his attempt failed.footnote26_jtxm3gi32
Misuses of martial law were not confined to Georgia. In 1931, Texas Governor Ross Sterling engaged in a standoff with the federal courts over his government’s ability to enforce a regulation limiting oil production by private well operators. At the climax of the conflict, Sterling imposed martial law on several counties — despite the total absence of violence or threats of violence — and deployed the Texas National Guard to enforce the regulation. He declared that the federal courts had no power to review his decision. The U.S. Supreme Court disagreed, explaining that “[t]here is no such avenue of escape from the paramount authority of the Federal Constitution.”footnote27_iz6r4ee33 It ordered Texas to stop using the military or any other means to enforce the regulation.
The federal government has used martial law far less frequently than the states, imposing it only a few times since the end of Reconstruction. Generals have declared it more often than the president, such as in 1920, when U.S. Army Gen. Francis C. Marshall imposed martial law on Lexington, Kentucky, in order to suppress a lynch mob attempting to storm the courthouse.footnote28_2k6nlja34 Most recently, the federal government declared martial law in Hawaii after the Japanese attack on Pearl Harbor in 1941, which initiated three years of absolute military rule in the islands.footnote29_umscqt335
As abruptly as it took hold in the mid-19th century, martial law disappeared from American life after World War II. The federal government has not declared martial law since it restored civilian rule to Hawaii in 1944. At the state level, martial law was last declared in 1963, when Maryland Governor J. Millard Tawes imposed it on the city of Cambridge for more than a year in response to clashes between racial justice advocates and segregationists.footnote30_7qabe3736 But even if the power to declare martial law has not been used in decades, it still exists in the case law and in the record books — and it remains poorly understood.
Part II: Can the President Unilaterally Declare Martial Law?
Despite the widespread use of martial law in the century that followed the Supreme Court’s ruling in Luther, many of the legal questions surrounding it remain unanswered. The Court has never explained the legal basis for martial law. It has implied that the federal government can declare it but has never said so conclusively. When discussing the possibility of a federal martial law power, the Court has never clearly indicated whether the president could unilaterally declare martial law or if Congress would first need to authorize it.
Insofar as the Supreme Court has said anything on these questions, its statements have been inconsistent. During the 19th century, the Court suggested in dicta that a federal martial law power was “implied in sovereignty” or justified by “necessity.”footnote1_jlj070437 In the early 20th century, it seemed to believe that the state martial law power was related to the executive’s constitutional power to “execute the law.”footnote2_737yurn38 During World War II, the Court assumed (without deciding) that Congress could authorize a federal declaration of martial law but did not make clear whether that authorization was required.footnote3_j6slcio39 In contrast, in a much earlier but influential 1866 concurring opinion, Chief Justice Salmon Chase did conclude that federal martial law exists and that it must be authorized by Congress.footnote4_mcb8odc40
Looking only at the Supreme Court’s martial law decisions, one can pick and choose from them to argue for almost anything. The case law is inconsistent and too sparse for a clear pattern in the Court’s reasoning to emerge. It is also old: even the most recent Supreme Court decision on martial law — Duncan v. Kahanamoku, decided in 1946 — predates many significant developments in U.S. constitutional law.footnote5_rshsyk341 The precedents thus provide little help in determining the legal basis for martial law — or, assuming that federal martial law is even permissible, whether its use is controlled by Congress or the president.
One must therefore turn to a different Supreme Court case for guidance: Youngstown Sheet & Tube Co. v. Sawyer.footnote6_sdfx2gy42 Decided in 1952, Youngstown held that President Harry Truman could not seize U.S. steel mills to prevent a labor dispute from disrupting the nation’s supply of steel in wartime. The decision — and Justice Robert Jackson’s concurring opinion in particular — has since become the doctrinal lodestar for assessing any exercise of power by the executive.footnote7_jq9tkkg43 Consider, for example, if the president were to declare martial law over the U.S. border with Mexico, deploying the army to enforce federal immigration laws and setting up military tribunals to prosecute alleged violators. In that hypothetical scenario, a federal court would likely apply Youngstown to decide whether the president had exceeded executive authority.
Under Youngstown, the courts show varying degrees of deference to presidential action, depending on whether the president is acting in accordance with or contrary to the will of Congress. Justice Jackson identified three “zones” into which presidential actions might fall. In the first zone, Congress has authorized the president’s conduct, entitling it to maximum deference from the courts. The court will uphold the action unless the federal government, as a whole, lacks the power to act. In the second zone, Congress has said nothing on the matter, so courts must search the Constitution to find some independent authority for the president’s action. In the third zone, the president’s conduct is contrary to laws Congress has passed. These actions are impermissible unless Congress has overstepped its own powers.footnote8_mfkt0d244
Although Youngstown did not address a declaration of martial law, Justice Jackson’s concurring opinion briefly mentioned the concept. Having stated that the Constitution’s drafters “made no express provision for exercise of extraordinary authority because of a crisis,” he included the following caveat in a footnote: “I exclude, as in a very limited category by itself, the establishment of martial law.”footnote9_1rwui4145 This language acknowledges the possibility that martial law might exist as an emergency power, despite the lack of any express provision for it in the Constitution. It does not, however, suggest where that power lies, and certainly does not indicate that it belongs solely to the executive branch. Nor does it render the three-zone test inapplicable in the context of martial law.
How would a unilateral presidential declaration of martial law on the southern border fare under Youngstown’s three-zone test? We start with what Congress has said: Congress has legislated so extensively with respect to the domestic use of the military — through, for example, the Posse Comitatus Act, the Insurrection Act, the Stafford Act, the Non Detention Act, and various other provisions within Title 10 of the U.S. Code — that it has “occupied the field.”footnote10_q35jnyl46 This means that Congress has created such a dense and comprehensive network of rules that anything the president does in this area that is not affirmatively authorized by statute is almost necessarily against Congress’s will. Such actions, including a hypothetical presidential declaration of martial law that Congress has not authorized, would fall within Youngstown’s third zone.
Furthermore, the Posse Comitatus Act creates a general rule that it is unlawful for federal military forces to engage in civilian law enforcement activities — even if they are merely supplementing rather than supplanting civilian authorities — except when doing so is expressly authorized by Congress.footnote11_qrfw5er47 As it is generally understood, martial law necessarily involves military participation in civilian law enforcement. While there are a number of statutory exceptions to the Posse Comitatus Act, none of them authorizes the president to declare martial law, as part III of this report explains. Therefore, the president’s declaration of martial law would directly violate the act, which again places it within zone 3 under Youngstown.
In zone 3, the president’s powers are at their “lowest ebb” and presidential actions are rarely upheld.footnote12_hp27qkg48 This reflects a general rule of constitutional law: that laws passed by Congress within the scope of its own constitutional powers “disable” contrary executive action.footnote13_cxlgku549 In other words, when Congress and the president disagree, Congress wins. Under Youngstown, this rule may be overcome — and the president can act against the will of Congress — only when a “conclusive and preclusive” grant of presidential power in the Constitution authorizes the challenged action.footnote14_xeijkz950 If the Constitution gives Congress any powers in that area, then the president’s authority is not “conclusive and preclusive,” and Congress’s will must prevail.
The critical question, then, is how the Constitution allocates the powers related to domestic deployment of the military. Three provisions of the Constitution implicate that sort of authority: the Calling Forth Clause in Article I, the Guarantee Clause in Article IV, and the Commander in Chief Clause in Article II.footnote15_9i7to1751 The balance of power established by these provisions decisively favors Congress over the president.
The Calling Forth Clause empowers Congress to “provide for” — that is, to regulate and control — the authority and procedures for “calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions.” As Justice Jackson explained in Youngstown, this provision was “written at a time when the militia rather than a standing army was contemplated as the military weapon of the Republic.”footnote16_16g5lbm52 It thus “underscores the Constitution’s policy that Congress, not the Executive, should control utilization of the war power as an instrument of domestic policy.”footnote17_gwr4nnr53
The Guarantee Clause requires the United States to “protect each [state] against Invasion; and on Application of the Legislature, or the Executive (when the Legislature cannot be convened) against domestic Violence.” This language is less clear-cut than the Calling Forth Clause, but it certainly does not constitute a “conclusive and preclusive” commitment of power to the executive. Instead, it grants authority to the federal government as a whole. Furthermore, it only allows unilateral federal action in the case of invasion. In the event of “domestic violence,” the affected state must request help before the federal government can act.
Lastly, the Commander in Chief Clause would not enable the president to unilaterally declare martial law in disregard of the Posse Comitatus Act and other statutes that regulate the domestic use of the military. To start, the Commander in Chief Clause is not a source of domestic regulatory authority for the president.footnote18_efu9kxn54 As Justice Jackson explained in Youngstown, “the Constitution did not contemplate that the title Commander-in-Chief of the Army and Navy” would also mean the president was “Commander-in-Chief of the country, its industries and its inhabitants.”footnote19_gei6qel55 While the clause grants something more than an “empty title,” its invocation does not give the president free rein.footnote20_8lbn4ao56 In domestic affairs, both generally and with respect to the role of the military, the Constitution envisions Congress as the branch in control.footnote21_rzrpjqz57
To be sure, the president’s powers under the Commander in Chief Clause do not cease to exist inside the territorial United States. If a foreign enemy launches a sudden attack inside the United States, it is generally understood that the president may act to repel that attack, even if Congress has not given its blessing.footnote22_9rzx8p558 And if Congress has authorized military action, the president controls the actual conduct of military operations, even if that fighting is taking place within the country’s borders (for instance, during a foreign invasion or civil war). But the former power is quite limited, and the latter relies on prior congressional authorization.
Because the Constitution does not give the president “conclusive and preclusive” authority over the domestic use of the military — and, on the contrary, explicitly vests power in the legislative branch — the president cannot act against Congress’s wishes in this area. Accordingly, a unilateral declaration of martial law by the president today — on the southern border or elsewhere — would not survive a legal challenge under Youngstown.
It bears emphasizing that this conclusion is compelled partly by the Constitution and partly by federal law. It is possible that, in the absence of the Posse Comitatus Act and other laws regulating domestic military activity, the president could rely on some independent executive power to declare martial law. But that scenario is hypothetical and the likely legal outcome is uncertain. The reality is that the domestic role of the U.S. military is subject to pervasive statutory regulation. This has altered what might otherwise be the scope of the president’s constitutional authority and precludes a unilateral presidential declaration of martial law.footnote23_wzm23cg59
In the imagined scenario described earlier, the president set up military tribunals to try violators of federal immigration law. The Posse Comitatus Act, however, only applies to military participation in law enforcement. When it comes to military involvement in judicial functions, the analysis changes, and the law is characterized by profound uncertainty. While the Calling Forth Clause expressly contemplates the use of military forces to execute the law, no provision of the Constitution authorizes the military to perform the functions assigned to the judicial branch under Article III. Nonetheless, the Supreme Court’s 1866 decision in Ex parte Milligan suggests that the president can, in certain circumstances, impose martial law in an area and replace the civilian courts there with military tribunals.footnote24_78z39wt60
The Court’s reasoning in Milligan has some striking inconsistencies and must be interpreted cautiously. In one part of the opinion, the Court firmly asserts that emergency conditions can never justify exceeding the bounds of the Constitution.footnote25_85o7z2w61 Elsewhere, however, the Court says that “necessity” might warrant declaring martial law and using military tribunals to try civilians if regular courts are unavailable.footnote26_nt6jjbk62 Importantly, this latter part of the Court’s opinion is dicta, rather than a necessary and binding part of the Court’s holding. That alone gives reason to doubt whether there is indeed a “necessity” loophole that allows the military to put civilians on trial. But the larger issue is that a necessity exception to the Constitution is impossible: it is a fundamental principle of U.S. constitutional law, reaffirmed countless times both before and after the Milligan ruling, that the government is always constrained by the Constitution, no matter the circumstances.footnote27_236o5yp63
In any event, even if the necessity-based exception articulated in Milligan were considered to be authoritative, it would be extremely narrow. It would allow the military to supplant civilian courts only during an actual war, on “the theatre of active military operations,” where the chaos and fighting are so severe that the regular courts have been forced to close and are unable to operate.footnote28_saocsjm64
The possibility of using martial law to replace civilian courts with military tribunals should not be confused with the rule established by Ex parte Quirin in 1942.footnote29_qld3u2b65 Quirin and a handful of more recent Supreme Court decisions related to the U.S. military’s detention facility at Guantanamo Bay allow U.S. citizens not serving in the military to be tried by military commission — a particular type of tribunal used by the U.S. military — if they are “enemy combatants.”footnote30_bexl0gg66 These individuals, the Court has held, are subject to the international law of war. As a result, Congress may authorize their trial by military commission even if civilian courts are open and functioning, pursuant to its authority to “define and punish . . . Offences against the Law of Nations.”footnote31_ucht76067 These decisions are not about martial law. They demarcate the line between military and civilian jurisdiction, rather than allowing the military to exercise jurisdiction in an area ordinarily reserved for civilian courts.
Part III: What has Congress Said About Martial Law?
No existing federal statute explicitly authorizes the president to declare martial law.footnote1_zmzws1e68 However, there are a number of statutory exceptions to the Posse Comitatus Act that allow the president to deploy the military domestically.footnote2_ek535za69 The most important of these is the Insurrection Act.footnote3_rx8nm8g70 Rather than a single package of legislation, the Insurrection Act consists of a series of statutes that were enacted between 1792 and 1871, with a few amendments in the 20th century.footnote4_punfqrk71
Three of the Insurrection Act’s provisions grant the president power to deploy troops domestically. The first two, Sections 251 and 252, are relatively straightforward and mirror the language of the Calling Forth Clause. Under Section 251, if there is an insurrection in a state, and the state’s legislature (or governor, if the legislature is unavailable) requests federal aid, then the president may deploy the National Guard or the regular armed forces to suppress the insurrection.footnote5_zb6ib7z72 Section 252 allows the president to deploy troops without a request from the affected state — indeed, even against the state’s wishes — in order to “enforce the laws” of the United States or to “suppress rebellion” whenever “unlawful obstructions, combinations, or assemblages, or rebellion” make it “impracticable” to enforce federal law in that state by the “ordinary course of judicial proceedings.”footnote6_sy3kk0x73
Nothing in the plain language of Sections 251 and 252 indicates that they authorize martial law. The clause in Section 251 that empowers the military to “suppress an insurrection” does not suggest that federal troops may take over the role of the civilian government in the process. Rather, it contemplates that the military may assist overwhelmed civilian authorities by doing exactly what soldiers are trained to do: fight and defeat an armed and hostile group.
Section 252 suggests a more expansive power: it allows the military to enforce federal law, not just to suppress an insurrection. Nonetheless, it still does not imply that the military may push aside the civilian authorities. In its 1946 decision in Duncan, the Supreme Court made clear that when a statute authorizes the military to encroach on the affairs of civilian government, the Court will interpret it extremely narrowly. If the statute does not specifically say that Congress meant to disrupt the “traditional boundaries” between civilian and military power, the Court will not imply that intent on Congress’s behalf.footnote7_cyenqon74 Because Section 252 does not expressly authorize the displacement of civilian authorities, it should not be read as license to turn the normal relationship between civilian and military power on its head. Instead, it should be understood merely as authorization for the military to assist civilian government officials when they are overwhelmed by forces attempting to obstruct law enforcement and judicial proceedings.
Section 253 is the only substantive provision of the Insurrection Act that might, on its face, be read to authorize a limited form of martial law. Among other things, it allows the president to use the National Guard or the active duty armed forces to suppress “any insurrection, domestic violence, unlawful combination, or conspiracy” in a state if it “so hinders the execution of [state or federal] laws” that “any part or class of [the state’s] people” is deprived of a constitutional right and “the constituted authorities” of the state “are unable, fail, or refuse to protect” that right.footnote8_8q5qpm875 As in Section 252, the desires of the state are irrelevant.
By its express terms, Section 253 contemplates a situation in which, rather than needing help from the military to enforce the laws, the civilian authorities are just not enforcing them. As a result, the president may send in troops to suppress whatever insurrection or other violence is causing a portion of the people in that state to be deprived of a constitutional right. Thus, if troops are deployed under Section 253, they will, to some extent at least, take over the role of the civilian government. However, the legislative history of Section 253 indicates that it is best understood as allowing the military to supplant only the local police, and to do so in service of laws duly enacted by civilian authorities.footnote9_qg79uqx76 This is so narrow that calling it even a “limited form” of martial law would probably be an exaggeration. Indeed, the Department of Defense’s own regulations emphasize the importance of maintaining the “primacy of civilian authority” when troops are deployed in support of law enforcement operations.footnote10_7uk0uj477
The Insurrection Act is an exception to the Posse Comitatus Act, but there are also some circumstances in which the latter law simply does not apply. As part V of this report explains, the Posse Comitatus Act does not affect the ability of states to call up their National Guard forces and deploy them within their own borders. In that situation, National Guard troops are operating in State Active Duty status. The Posse Comitatus Act also does not apply when National Guard forces are activated in what is known as Title 32 status, in which the troops remain subject to state command and control, but are used for federal missions and are typically paid for by the federal government.footnote11_08qtzo578
On its face, Title 32 appears to authorize a fairly limited set of activities relating to drug interdiction and counter-drug activities, homeland security protection, and training exercises. In early June 2020, however, U.S. Attorney General William Barr put forward a shockingly broad interpretation of the section of Title 32 that addresses “required training and field exercises” for National Guard forces. Under this section, training may include “operations or missions undertaken . . . at the request of the President or Secretary of Defense.”footnote12_llicxeh79 In a formal letter explaining the deployment of several states’ National Guard forces to Washington, DC, during protests that followed the police killing of George Floyd in May 2020, Barr asserted that this language allows the president to use the National Guard at any time and for any reason — a reading that effectively creates a gaping loophole in the Posse Comitatus Act.footnote13_lwb5arl80
The attorney general’s interpretation is suspect for a number of reasons, but even if it were correct, it would not authorize martial law.footnote14_z241e1o81 As with the Insurrection Act, there is no clear statement in Title 32 to suggest that Congress intended to reverse the usual constitutional order in which the military remains subordinate to civilian authority. Under the Supreme Court’s reasoning in Duncan, the language cited by Barr could at most be read to authorize the use of the military to assist civilian law enforcement authorities.footnote15_46do2li82
In short, no existing statute authorizes the president to declare martial law. Congress has given the president considerable authority, however, to use troops domestically to assist in civilian law enforcement activities. Deploying troops under the Insurrection Act might not raise all of the same concerns that would be associated with a declaration of martial law, but there is reason to worry whenever a president uses the military as a domestic police force — particularly without the consent of the state to which the armed forces are sent.
To start, using the military to enforce the law flies in the face of American tradition. The Founders were deeply suspicious of the very idea of a national standing army, believing that it could be used as an instrument of oppression and could pose a threat to the autonomy of the individual states.footnote16_8kn4g0d83 Many of the protections enshrined in the Constitution’s Bill of Rights reflect the hard lessons the Founders learned at the hands of British soldiers about the dangers of allowing the military to act as a domestic police force. They worried that a president equipped with a ready and loyal army would be able to subvert democracy and impose his will on the states and the people.
Moreover, even with the best of intentions, asking the military to stand in for the police can yield disastrous results. Soldiers are trained to fight and destroy an enemy, one that generally lacks constitutional rights. As such, they are poorly suited to performing the duties of police. Forcing them into that role can increase the risk of violence.footnote17_sogwg4t84 In the words of a Minnesota National Guard member facing deployment in response to the protests that followed the murder of George Floyd: “We’re a combat unit not trained for riot control or safely handling civilians in this context. Soldiers up and down the ranks are scared about hurting someone.”footnote18_sn78×7l85
Part IV: Martial Law is Constrained by the Constitution and Subject to Judicial Review
Even if Congress were to authorize martial law, and the Supreme Court were to uphold its power to do so, the Constitution would still apply. Congress, the president, and the Supreme Court are bound at all times by the Constitution and possess only the powers it confers. None of those powers allows the government to suspend or violate constitutional rights by martial law or by any other means. On the contrary, as the Supreme Court explained in Milligan, “the Constitution of the United States is a law for rulers and people, equally in war and in peace, and covers with the shield of its protection all classes of men, at all times, and under all circumstances.”footnote1_ehx4o7x86
The Constitution allows Congress to suspend habeas corpus, but every other right it guarantees is intentionally left “forever inviolable.”footnote2_mad9bdj87 There is no constitutional procedure for suspending the First Amendment’s protection of free expression, the Fourth Amendment’s prohibition on “unreasonable searches and seizures,” the Fifth and Sixth Amendment rights to trial by jury and the assistance of a lawyer, or the Fifth Amendment right not to “be deprived of life, liberty, or property, without due process of law.”
For the most part, however, the rights conferred by the Constitution are not absolute. When courts decide whether those rights have been violated, they consider the circumstances —including not only the impact on the individual whose rights are affected, but also the interests of the government — and there is often a balancing involved.footnote3_syx49xx88 In the kind of emergency that would justify the declaration of martial law, the government might not have to provide the same comprehensive procedures required in ordinary times before detaining someone or confiscating property. But the right to due process remains, along with all other constitutional rights, and the federal courts have the power to decide whether they have been violated.footnote4_t5qjyw489
The Supreme Court, without actually endorsing the federal government’s power to declare martial law, has established that such declarations are subject to judicial review. At a minimum, in a state or territory that the federal government has placed under martial law, individuals who have been detained by the military may ask a federal court to order their release by petitioning for the writ of habeas corpus.footnote5_x0l884h90 A court that considers an individual’s petition can decide whether the declaration of martial law was constitutionally permissible.footnote6_83rcq8791 The reviewing court can also decide whether the military’s particular actions — such as the decision to arrest and detain the person petitioning for habeas corpus — have violated the Constitution or exceeded the powers granted by the statute (if any) that authorized martial law.footnote7_3e9f54r92
When determining whether the military has exceeded its statutory authority, courts will construe that authority narrowly. This rule derives from the Supreme Court’s decision in Duncan. Usually, the term martial law refers to the military taking the place of civilian authorities. But in Duncan, the Court held that simply putting the words “martial law” in a statute is not sufficient to authorize such extreme measures. The Court explained that martial law has never been precisely or conclusively defined. It emphasized the importance of the “traditional boundaries” between military and civilian power in the United States, and identified three basic principles that make up those boundaries: first, that the military must remain subordinate to civilian control and the law; second, that it may only assist civilian authorities when it is deployed domestically; and, third, that it may neither interfere with nor usurp the roles of the legislature or the judiciary.footnote8_fomktr293
The Court concluded that, because these principles are deeply engrained in U.S. law and institutions, any law that purports to abridge them must be clear and specific about how they may be abridged. For instance, a statute might expressly authorize the use of military tribunals to try civilians in areas where an invasion has resulted in the closure of the courts and the government has declared martial law. If that specificity is lacking — if the statute or its legislative history do not define what Congress meant by martial law — then courts will assume that Congress intended only to authorize the military to “act vigorously for the maintenance of an orderly civil government and for the defense of the [area] against actual or threatened rebellion or invasion.”footnote9_zku45xu94
Part V: What About the States?
The law governing states’ use of martial law is comparatively simple. The Supreme Court has expressly held that individual states have the power to declare martial law.footnote1_phwonns95 The Posse Comitatus Act does not apply to the states and thus does not affect their ability to use their military forces for domestic law enforcement.footnote2_lxufms296 Instead, a state declaration of martial law is valid simply if it is authorized by the constitution or laws of the state.footnote3_ckmsi7997
But this does not mean that states can do whatever they want. The Supremacy Clause establishes that the U.S. Constitution, federal laws, and treaties constitute “the supreme Law of the Land,” meaning that states have no authority to override them.footnote4_qo1wbta98 The Supreme Court has emphasized that even under martial law, state officials are bound both by the U.S. Constitution and by valid federal laws.footnote5_1n4gyk499 If individuals wish to challenge a state declaration of martial law, they may seek injunctive relief in federal court — or, if they have been detained, they may petition for the writ of habeas corpus.footnote6_3py0f60100 The reviewing court will show great deference to a state governor’s determination that the situation required a declaration of martial law.footnote7_qkzt4nz101 However, the court will examine whether any military actions taken under that declaration have run afoul of the Constitution or federal law.footnote8_ypdkooy102
On that question, the Supreme Court ruled in Moyer v. Peabody and Sterling v. Constantin that actions taken under state martial law are valid if they are “conceived in good faith, in the face of the emergency, and [are] directly related to the quelling of the disorder or the prevention of its continuance.”footnote9_rgu96qw103 This “good faith/direct relationship” standard could be read to imply that state officials may take actions under martial law that would in other circumstances violate the Constitution. In other words, it suggests that in an emergency, good faith and a direct relationship between means and ends are enough to satisfy the Due Process Clause of the Fourteenth Amendment.
However, the “good faith/direct relationship” standard from Sterling and Moyer is more appropriately read as a floor than as a ceiling. Both cases certainly suggest that a state’s actions would be invalid if they were made in bad faith or were not directly related to quelling the disturbance that precipitated them. But it is not clear that good faith and a direct relationship alone would be enough to satisfy due process or other constitutional requirements today. Moyer and Sterling are very old cases. Decided in 1909 and 1932, respectively, they predate virtually all of the Supreme Court’s modern due process and civil rights case law.footnote10_cdfi0u5104 Under those precedents, it is likely that the Court would apply a more demanding standard of review.
Conclusion
The law governing martial law is complicated and unsettled, but a few principles can be found in the Supreme Court’s rulings on this topic and on the limits of executive power more generally. The Constitution gives Congress authority to regulate the domestic deployment of the military, and Congress has enacted comprehensive legislation in that area. Because that legislation does not include authorization for the president to impose martial law, the president has no power to do so. Even if Congress were to provide authorization, the Supreme Court has not conclusively decided that the federal government is constitutionally empowered to declare martial law. But it is clear that such a power, if it existed, would have to be exercised within the bounds of the Constitution, and the military’s actions would be subject to judicial review.
The state martial law power is more clearly established, but there are significant limits. States may declare martial law whenever it is authorized by state law, and federal courts are likely to defer to a state governor’s decision that doing so was necessary. However, the Constitution and valid federal laws will still constrain states’ conduct under the declaration, and judicial review will be available in federal court.
The exact scope and limits of martial law will thus remain dangerously unclear until Congress and state legislatures enact new laws that better define them.
Beyond this, the Supreme Court precedent is too old, sparse, and inconsistent to provide any certainty around martial law. Indeed, in the absence of legislation specifically addressing martial law, even the above principles are subject to competing interpretations and would likely be disputed by executive officials seeking to use military forces more aggressively. The exact scope and limits of martial law will thus remain dangerously unclear until Congress and state legislatures enact new laws that better define them.
Moreover, even without the power to declare martial law, the president still has extensive authority to deploy the military domestically to perform law enforcement functions. The Insurrection Act — and possibly Title 32 as well — leave it almost entirely up to the president to decide when and where to use U.S. armed forces at home against Americans. To some observers, a deployment of troops under the Insurrection Act might look and feel very much like martial law. Given the degree of confusion over the term, some within the media or the government itself might even call it martial law. Although that label would be inaccurate and the military’s authority would be substantially less extensive than under martial law, the fact remains that any use of U.S. armed forces as a domestic police force represents a departure from American tradition and carries inherent risks. Thus, as with martial law, Congress urgently needs to pass legislation clarifying and limiting the president’s powers under the Insurrection Act and Title 32.
Acknowledgments
The author would like to thank the Brennan Center’s Elizabeth Goitein for her invaluable guidance, comments, and suggestions, as well as Mireya Navarro, Tim Lau, Stephanie Sykes, Jeanne Park, Matthew Harwood, Ryan Witcombe, and Justin Charles for their outstanding communications support. Sahil Singhvi, Victoria Ochoa, Rachel Lesser, Aleena Nasir, Amelia Shapiro, and Sheel Patel deserve special thanks for their diligent research efforts, which made this report possible.
The author would also like to thank professors Steve Vladeck, Bill Banks, and Jeff Powell. The knowledge and insight they contributed through conversations and correspondence greatly benefited the report.
The Brennan Center gratefully acknowledges The Bauman Foundation, CS Fund/Warsh-Mott Legacy, Democracy Fund, The Endeavor Foundation, Inc., The William and Flora Hewlett Foundation, and Open Society Foundations for their generous support of our work.
Endnotes
- footnote1_7uasfnz
1
Duncan v. Kahanamoku, 327 U.S. 304, 309–10 (1946). - footnote2_bf6ogen
2
Although Hawaii was an incorporated territory, not a state, in 1942, the Supreme Court found that the Constitution applied there in full and that the legality of martial law must be analyzed as though it were a state. Duncan, 327 U.S. at 319. - footnote3_0p7cqyf
3
Harry N. Scheiber and Jane L. Scheiber, Bayonets in Paradise: Martial Law in Hawai’i during World War II (Honolulu: University of Hawai’i Press, 2016). - footnote4_wqx4qpj
4
Duncan, 327 U.S. at 309–10; and Ex parte Duncan, 146 F.2d 576, 577 (9th Cir. 1945). - footnote5_joz5h6q
5
Joseph Nunn, Guide to Declarations of Martial Law in the United States, Brennan Center for Justice, August 20, 2020, https://www.brennancenter.org/our-work/research-reports/guide-declarations-martial-law-united-states. - footnote6_fd05ocm
6
Duncan, 327 U.S. 304; Sterling v. Constantin, 287 U.S. 378 (1932); Moyer v. Peabody, 212 U.S. 78 (1909); Ex parte Milligan, 71 U.S. 2 (1866); and Luther v. Borden, 48 U.S. 1 (1849). - footnote1_mfja7zw
7
Duncan, 327 U.S. at 315 (“The term martial law carries no precise meaning.”). - footnote2_zl9lbxg
8
William C. Banks and Stephen Dycus, Soldiers on the Home Front: The Domestic Role of the American Military (Cambridge, MA: Harvard University Press, 2016), 198; John Fabian Witt, “A Lost Theory of American Emergency Constitutionalism,” Law and History Review 36 (August 2018): 581–83; Stephen I. Vladeck, “The Field Theory: Martial Law, the Suspension Power, and the Insurrection Act,” Temple Law Review 80 (Summer 2007): 391–439; Stephen I. Vladeck, “Emergency Power and the Militia Acts,” Yale Law Journal 114 (Fall 2004): 149, 162; and George M. Dennison, “Martial Law: The Development of a Theory of Emergency Powers, 1776–1861,” American Journal of Legal History 18 (January 1974): 61. - footnote3_bfm37m9
9
John M. Collins, Martial Law and English Laws, c. 1500–c. 1700 (Cambridge: Cambridge University Press, 2016), 27. - footnote4_3cdhdeg
10
Collins, Martial Law and English Laws, 3–7; and Dennison, “Martial Law,” 52. - footnote5_nkn2ea7
11
Uniform Code of Military Justice, 64 Stat. 109, 10 U.S.C. §§ 801–946. - footnote6_0yfkjz8
12
Matthew Warshauer, Andrew Jackson and the Politics of Martial Law: Nationalism, Civil Liberties, and Partisanship (Knoxville: University of Tennessee Press, 2006), 19–46. - footnote7_aet0ij2
13
Dennison, “Martial Law,” 61–62; and Vladeck, “Field Theory,” 422. - footnote8_6qa0utf
14
Vladeck, “Emergency Power and the Militia Acts,” 156–58. - footnote9_9p05kys
15
Dennison, “Martial Law,” 64 (citing Johnson v. Duncan et al. Syndics, 1 Harr. Cond. Rep. 157–70 [1815]). - footnote10_ciqc255
16
Dennison, “Martial Law,” 64 (citing Dallas to Jackson, 12 April, 1 July 1815, in John Spencer Bassett and J. Franklin Jameson, eds., Correspondence of Andrew Jackson, vol. 2, Andrew Jackson Papers, Library of Congress, Washington, DC, 1926–35, 203–4, 212–13). - footnote11_3f4sjp1
17
Warshauer, Andrew Jackson and the Politics of Martial Law, 6–12. - footnote12_fd6g1r6
18
Warshauer, Andrew Jackson and the Politics of Martial Law, 5–6. - footnote13_kg89bix
19
Act of February 16, 1844, ch. 2, 5 Stat. 651. - footnote14_7mp0o6u
20
Luther, 48 U.S. at 35–37; and Dennison, “Martial Law,” 68. - footnote15_jt84inf
21
Luther, 48 U.S. at 47. - footnote16_b41ic6e
22
Luther, 48 U.S. at 45. - footnote17_18qmx81
23
Vladeck, “Field Theory,” 428–29; and Dennison, “Martial Law,” 76. - footnote18_0y6qrno
24
Milligan, 71 U.S. at 127. - footnote19_98elg0w
25
Duncan, 327 U.S. at 313. - footnote20_ukfet8w
26
Vladeck, “Emergency Power and the Militia Acts,” 175–83; and Banks and Dycus, Soldiers on the Home Front, 203–7. - footnote21_n4n44yd
27
Mark E. Neely Jr., Southern Rights: Political Prisoners and the Myth of Confederate Constitutionalism (Charlottesville: University Press of Virginia, 1999). - footnote22_tga7sol
28
Joseph Nunn, Guide to Declarations of Martial Law in the United States, Brennan Center for Justice, August 20, 2020. - footnote23_jdeigqz
29
Debbie Jackson and Hilary Pittman, “Throwback Tulsa: Colorful ‘Alfalfa Bill’ Fell Short in Presidential Bid,” Tulsa World, July 14, 2016, https://www.tulsaworld.com/news/local/history/throwback-tulsa-colorful-alfalfa-bill-fell-short-in-presidential-bid/article_23b7bd2f-12ce-5415-a92f-937ecb40c0a6.html. - footnote24_f80t38m
30
Mary Plazo, “That Akron Riot,” Past Pursuits: A Newsletter of the Special Collections Division of the Akron-Summit County Public Library 9 (Summer 2010): 7, https://www.akronlibrary.org/images/Divisions/SpecCol/images/PastPursuits/pursuits92.pdf; and “Martial Law at an End: Conditions at Galveston Improving,” Los Angeles Herald, September 21, 1900, 2. - footnote25_ukhro95
31
Elizabeth Jameson, All That Glitters—Class, Conflict, and Community in Cripple Creek (Champaign: University of Illinois Press, 1998), 207–8. - footnote26_jtxm3gi
32
“National Affairs: Martial Law,” Time, July 3, 1933, http://content.time.com/time/magazine/article/0,9171,745726,00.html; and Miller v. Rivers, 31 F. Supp. 540 (M.D. Ga. 1940), rev’d as moot, 112 F.2d 439 (5th Cir. 1940). - footnote27_iz6r4ee
33
Sterling, 287 U.S. at 398, 403–4. - footnote28_2k6nlja
34
Peter Brackney, The Murder of Geneva Hardman and Lexington’s Mob Riot of 1920 (Charleston, SC: History Press, 2020), 97–98. - footnote29_umscqt3
35
Scheiber and Scheiber, Bayonets in Paradise. - footnote30_7qabe37
36
Joseph R. Fitzgerald, The Struggle Is Eternal: Gloria Richardson and Black Liberation (Lexington: University Press of Kentucky, 2018), 121–29; Rebecca Contreras, “Cambridge, Maryland, Activists Campaign for Desegregation, USA, 1962–1963,” Global Nonviolent Action Database, last modified July 27, 2011, accessed July 30, 2020, https://nvdatabase.swarthmore.edu/content/cambridge-maryland-activists-campaign-desegregation-usa-1962–1963; Hedrick Smith, “Martial Law Is Imposed in Cambridge, Md., Riots,” New York Times, July 13, 1963, 1, 6, https://nyti.ms/30fTf3i; and “Tawes Withdraws Last Guard Troops in Cambridge, Md.,” New York Times, July 8, 1964, 18, https://nyti.ms/39PfcK0 . - footnote1_jlj0704
37
Luther, 48 U.S. at 45; and United States v. Diekelman, 92 U.S. 520, 526 (1875). - footnote2_737yurn
38
Sterling, 287 U.S. at 398; and Duncan, 327 U.S. at 335 (Stone, C. J., concurring in the result). Note that both the portion of Luther that Chief Justice Stone cites and the rest of his opinion directly contradict his own opening proposition. - footnote3_j6slcio
39
Duncan, 327 U.S. at 312–24. - footnote4_mcb8odc
40
Milligan, 71 U.S. at 132–42 (Chase, C. J., concurring in part and dissenting in part). - footnote5_rshsyk3
41
Youngstown Sheet & Tube Co. v. Sawyer, 343 U.S. 579 (1952); Mapp v. Ohio, 367 U.S. 643 (1961); Massiah v. United States, 377 U.S. 201 (1964); Griswold v. Connecticut, 381 U.S. 479 (1965); Miranda v. Arizona, 384 U.S. 436 (1966); Hamdi v. Rumsfeld, 542 U.S. 507 (2004); Hamdan v. Rumsfeld, 548 U.S. 557 (2006); Boumediene v. Bush, 553 U.S. 723 (2008); and War Powers Resolution, 50 U.S.C. §§ 1541–48. - footnote6_sdfx2gy
42
Youngstown, 343 U.S. 579. - footnote7_jq9tkkg
43
Medellin v. Texas, 552 U.S. 491, 128 S. Ct. 1346, 1350 (2008) (“Justice Jackson’s familiar tripartite scheme provides the accepted framework for evaluating executive action in this area.”); Dames & Moore v. Regan, 453 U.S. 654, 661 (1981) (“Justice Jackson in his concurring opinion in Youngstown . . . brings together as much combination of analysis and common sense as there is in this area.”); and H. Jefferson Powell, The President as Commander in Chief: An Essay in Constitutional Vision (Durham, NC: Carolina Academic Press, 2014), 53–135. - footnote8_mfkt0d2
44
Youngstown, 343 U.S. at 635–38 (Jackson, J., concurring). - footnote9_1rwui41
45
Youngstown, 343 U.S. at 650n19 (Jackson, J., concurring). - footnote10_q35jnyl
46
18 U.S.C. § 1385; 10 U.S.C. §§ 251–55; 42 U.S.C. § 5121 et seq.; 18 U.S.C. § 4001(a); 10 U.S.C ch. 15, §§ 271–84; and Youngstown, 343 U.S. at 639 (Jackson, J., concurring). - footnote11_qrfw5er
47
Jennifer K. Elsea, The Posse Comitatus Act and Related Matters: The Use of the Military to Execute Civilian Law, CRS report no. R42659 (Washington, DC: Congressional Research Service, 2018), https://fas.org/sgp/crs/natsec/R42659.pdf. The Posse Comitatus Act nominally allows for constitutional exceptions to its general rule, but none exists. - footnote12_hp27qkg
48
Youngstown, 343 U.S. at 639 (Jackson, J., concurring). - footnote13_cxlgku5
49
Hamdan, 548 U.S. at 593n23 (“Whether or not the President has independent power, absent congressional authorization, to convene military commissions, he may not disregard limitations that Congress has, in proper exercise of its own war powers, placed on his powers.”); Youngstown, 343 U.S. at 654–55 (Jackson, J., concurring); Little v. Barreme, 6 U.S. 170 (1804); and Powell, President as Commander in Chief, 101–8. - footnote14_xeijkz9
50
Youngstown, 343 U.S. at 637–38 (Jackson, J., concurring). - footnote15_9i7to17
51
U.S. Const. art. I, § 8, cl. 15 (empowering Congress “[t]o provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions.”); U.S. Const. art. IV, § 4 (“The United States shall guarantee to every State in this Union a Republican Form of Government, and shall protect each of them against Invasion; and on Application of the Legislature, or of the Executive (when the Legislature cannot be convened) against domestic Violence.”); and U.S. Const. art. II, § 2, cl. 1 (“The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States.”). - footnote16_16g5lbm
52
Youngstown, 343 U.S. at 644 (Jackson, J., concurring). - footnote17_gwr4nnr
53
Youngstown, 343 U.S. at 644 (Jackson, J., concurring); and Stephen I. Vladeck, “The Calling Forth Clause and the Domestic Commander-in-Chief,” Cardozo Law Review 29 (January 2008): 1091–108. - footnote18_efu9kxn
54
Youngstown, 343 U.S. at 643–44 (Jackson, J., concurring); and Powell, President as Commander in Chief, 120–21. - footnote19_gei6qel
55
Youngstown, 343 U.S. at 643–44 (Jackson, J., concurring). - footnote20_8lbn4ao
56
Youngstown, 343 U.S. at 641 (Jackson, J., concurring). - footnote21_rzrpjqz
57
Vladeck, “Calling Forth Clause and the Domestic Commander-in-Chief,” 1106. - footnote22_9rzx8p5
58
Prize Cases, 67 U.S. (2 Black) 635, 669 (1862). - footnote23_wzm23cg
59
In Justice Jackson’s words, “presidential powers are not fixed but fluctuate, depending upon their disjunction or conjunction with those of Congress.” Youngstown, 343 U.S. at 635 (Jackson, J., concurring); and Powell, President as Commander in Chief, 99–100. - footnote24_78z39wt
60
Milligan, 71 U.S. at 127. - footnote25_85o7z2w
61
Milligan, 71 U.S. at 120–21. - footnote26_nt6jjbk
62
Milligan, 71 U.S. at 127. - footnote27_236o5yp
63
Youngstown, 343 U.S. 579; Carter v. Carter Coal Company, 298 U.S. 238 (1936); Ex parte Merryman, 17 F. Cas. 144 (C.C.D. Md. 1861); McCulloch v. Maryland, 17 U.S. 316 (1836); and Marbury v. Madison, 1 Cranch 137 (1803). - footnote28_saocsjm
64
Milligan, 71 U.S. at 127. - footnote29_qld3u2b
65
Ex parte Quirin, 317 U.S. 1 (1942). - footnote30_bexl0gg
66
Quirin, 317 U.S. at 46; Hamdi, 542 U.S. 507; Hamdan, 548 U.S. 557; and Boumediene, 553 U.S. 723. - footnote31_ucht760
67
U.S. Const. art. I, § 8 cl. 10. - footnote1_zmzws1e
68
Two federal statutes (48 U.S.C. §§ 1422, 1591) authorize the territorial governors of Guam and the U.S. Virgin Islands to declare martial law under certain circumstances. Neither statute grants any power to the president. - footnote2_ek535za
69
Elsea, Posse Comitatus Act, 31–49. - footnote3_rx8nm8g
70
10 U.S.C. §§ 251–55. - footnote4_punfqrk
71
These statutes are the 1792 Calling Forth Act, the 1795 Militia Act, the 1807 Insurrection Act, the 1861 Suppression of the Rebellion Act, and the 1871 Ku Klux Klan Act. The 1792 act and parts of the 1871 act contained sunset provisions, and are no longer in force, but their text and legislative history remain instructive. Vladeck, “Emergency Power and the Militia Acts,” 152n9. - footnote5_zb6ib7z
72
10 U.S.C. § 251 (“Whenever there is an insurrection in any State against its government, the President may, upon the request of its legislature or of its governor if the legislature cannot be convened, call into Federal service such of the militia of the other States, in the number requested by that State, and use such of the armed forces, as he considers necessary to suppress the insurrection.”). - footnote6_sy3kk0x
73
10 U.S.C. § 252 (“Whenever the President considers that unlawful obstructions, combinations, or assemblages, or rebellion against the authority of the United States, make it impracticable to enforce the laws of the United States in any State by the ordinary course of judicial proceedings, he may call into Federal service such of the militia of any State, and use such of the armed forces, as he considers necessary to enforce those laws or to suppress the rebellion.”). - footnote7_cyenqon
74
Duncan, 327 U.S. at 319–24. - footnote8_8q5qpm8
75
The full text of 10 U.S.C. § 253 provides the following: The President, by using the militia or the armed forces, or both, or by any other means, shall take such measures as he considers necessary to suppress, in a State, any insurrection, domestic violence, unlawful combination, or conspiracy, if it— (1) so hinders the execution of the laws of that State, and of the United States within the State, that any part or class of its people is deprived of a right, privilege, immunity, or protection named in the Constitution and secured by law, and the constituted authorities of that State are unable, fail, or refuse to protect that right, privilege, or immunity, or to give that protection; or (2) opposes or obstructs the execution of the laws of the United States or impedes the course of justice under those laws. In any situation covered by clause (1), the State shall be considered to have denied the equal protection of the laws secured by the Constitution. - footnote9_qg79uqx
76
What is now 10 U.S.C. § 253 originated as Section 3 of the 1871 Ku Klux Klan Act. Civil Rights (Ku Klux Klan) Act of 1871, ch. 22, 17 Stat. 13. The act’s legislative history indicates that Congress meant for section 3 to authorize the military to take over the role of the local police, but nothing more. Cong. Globe, 42d Cong., 1st Sess. at 567–68 (1871) (statement of Sen. Edmunds). Moreover, the House version of Section 4 of the act explicitly authorized the president to declare martial law, but this language was removed before the bill was sent to the Senate. See Cong. Globe, 42d Cong., 1st Sess. at 317 (1871) (statement of Rep. Shellabarger); and Cong. Globe, 42d Cong., 1st Sess. at 478 (1871) (statement of Rep. Shellabarger). The fact that Congress considered and removed the martial law language demonstrates that it was aware of martial law and either chose not to authorize it or determined that it lacked the power to do so. - footnote10_7uk0uj4
77
U.S. Department of Defense, “Defense Support of Civilian Law Enforcement Agencies,” Instruction no. 3025.21, last updated February 8, 2019, https://www.esd.whs.mil/Portals/54/Documents/DD/issuances/dodi/302521p.pdf; and Ryan Goodman and Steve Vladeck, “The Untold Power of Bill Barr to Direct US Military Forces in Case of ‘Civil Unrest,’” Just Security, June 9, 2020, https://www.justsecurity.org/70672/the-untold-power-of-bill-barr-to-direct-us-military-forces-in-case-of-civil-unrest/. - footnote11_08qtzo5
78
Elsea, Posse Comitatus Act, 61–62n419; Steve Vladeck, “Why Were Out-of-State National Guard Units in Washington, D.C.? The Justice Department’s Troubling Explanation,” LawFare, June 9, 2020, https://www.lawfareblog.com/why-were-out-state-national-guard-units-washington-dc-justice-departments-troubling-explanation; and Jennifer K. Elsea, The President’s Authority to Use the National Guard or the Armed Forces to Secure the Border, CRS report no. LSB10121 (Washington, DC: Congressional Research Service, 2018), https://fas.org/sgp/crs/natsec/LSB10121.pdf. - footnote12_llicxeh
79
32 U.S.C. § 502(f)(2)(A). - footnote13_lwb5arl
80
Kerri Kupec DOJ (@KerriKupecDOJ), “Letter from Attorney General William P. Barr to D.C. Mayor Muriel Bowser on the Trump Administration’s restoration of law and order to the District,” Twitter, June 9, 2020, 3:45 p.m., https://twitter.com/kerrikupecdoj/status/1270487263324049410. - footnote14_z241e1o
81
Vladeck, “Why Were Out-of-State National Guard Units in Washington, D.C.?” - footnote15_46do2li
82
Duncan, 327 U.S. at 319–24. - footnote16_8kn4g0d
83
Vladeck, “Emergency Power and the Militia Acts,” 156. - footnote17_sogwg4t
84
For examples, one need only look to the Kent State massacre in 1970 or incidents during the military deployment to Los Angeles during the 1992 riots. Howard Means, 67 Shots: Kent State and the End of American Innocence (Boston: Da Capo Press, 2016); and Jim Newton, “Did Bill Barr Learn the Wrong Lesson from the L.A. Riots?,” Politico, June 9, 2020, https://www.politico.com/news/magazine/2020/06/09/william-barr-los-angeles-riots-307446. - footnote18_sn78×7l
85
Ken Klippenstein, “Exclusive: The Military Is Monitoring Protests in 7 States,” Nation, May 30, 2020, https://www.thenation.com/article/society/national-guard-defense-department-protests/. - footnote1_ehx4o7x
86
Milligan, 71 U.S. at 120–21; and Boumediene, 553 U.S. at 798 (“Liberty and security can be reconciled; and in our system they are reconciled within the framework of the law.”). - footnote2_mad9bdj
87
Milligan, 71 U.S. at 126. - footnote3_syx49xx
88
United States v. Knights, 534 U.S. 112, 118–19 (2001) (“The touchstone of the Fourth Amendment is reasonableness, and the reasonableness of a search is determined by assessing, on the one hand, the degree to which it intrudes upon an individual’s privacy and, on the other, the degree to which it is needed to promote legitimate governmental interests.”); Sable Communications v. FCC, 492 U.S. 115, 126 (1989) (“The Government may . . . regulate the content of constitutionally protected speech in order to promote a compelling interest if it chooses the least restrictive means to further the articulated interest.”); and Moyer, 212 U.S. at 84 (“[W]hat is due process of law depends on circumstances.”). - footnote4_t5qjyw4
89
Boumediene, 553 U.S. 723; Hamdan, 548 U.S. 557; and Hamdi, 542 U.S. 507. - footnote5_x0l884h
90
Duncan, 327 U.S. at 307, 324; and Milligan, 71 U.S. at 130–31. - footnote6_83rcq87
91
Milligan, 71 U.S. at 126–27. - footnote7_3e9f54r
92
Duncan, 327 U.S. at 324; and Milligan, 71 U.S. at 130–31. - footnote8_fomktr2
93
Duncan, 327 U.S. at 319–24. - footnote9_zku45xu
94
Duncan, 327 U.S. at 324. - footnote1_phwonns
95
Luther, 48 U.S. at 45–46. - footnote2_lxufms2
96
Elsea, Posse Comitatus Act, 61–62n419. - footnote3_ckmsi79
97
Sterling, 287 U.S. at 403–4; Moyer, 212 U.S. at 84–85; and Luther, 48 U.S. at 45–46. - footnote4_qo1wbta
98
U.S. Const. art. VI, § 2. - footnote5_1n4gyk4
99
Sterling, 287 U.S. at 398 (explaining that declaring martial law provides no escape “from the paramount authority of the Federal Constitution”). - footnote6_3py0f60
100
Sterling, 287 U.S. at 403–4 (enjoining the state from using martial law, military force, or any other means to enforce an invalidating oil production regulation); and Moyer, 212 U.S. 78 (ruling on a habeas petition where petitioner was detained by military forces acting under martial law). - footnote7_qkzt4nz
101
Moyer, 212 U.S. at 83–85. Justice Holmes derived this rule from two earlier Supreme Court decisions: Luther, 48 U.S. 1, and Martin v. Mott, 25 U.S. 19 (1827). See also Sterling, 287 U.S. at 397–401. - footnote8_ypdkooy
102
Sterling, 287 U.S. at 400–401 (“What are the allowable limits of military discretion, and whether or not they have been overstepped in a particular case, are judicial questions.”). - footnote9_rgu96qw
103
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