In the 1930s, Congress nearly passed a constitutional amendment requiring a national vote before declaring war

Free speech has often been restricted in wartime, potentially unconstitutionally

From the Sedition Act of 1798 to the prosecution of anti-war activists during World War I, the US government repeatedly curtailed speech and dissent during wartime—actions widely criticized and, in some cases, later deemed unconstitutional.

The first test of America's war powers came just a decade after the Constitution was ratified

During the undeclared Quasi-War with France in 1800, the Supreme Court ruled in Bas v. Tingy that Congress had authorized a valid "imperfect war" through statutes alone, without a formal declaration, establishing that there is a legal spectrum between peace and declared war.

Amending the Constitution requires broad support

The framers created a demanding amendment process. Proposed changes require two-thirds approval in both houses of Congress and ratification by three-fourths of the state legislatures, making sure that constitutional amendments reflect a broad national consensus rather than temporary political majorities.

The attacks prompted a quick jump in American public support for war

In a Gallup poll taken days after the attack, an extraordinary 97% of Americans approved Congress declaring war on Japan—reflecting overwhelming national unity in the wake of the strike.

Congress has formally declared war 11 times across five conflicts, the last in 1942

The five declared wars were the War of 1812, the Mexican-American War, the Spanish-American War, World War I, and World War II. Every major American military conflict since Korea, Vietnam, Iraq, and Afghanistan has been fought without a formal declaration.

At the 1787 Constitutional Convention, Madison changed the draft language from Congress's power to "make" war to "declare" war

The change was deliberate: "make" war seemed to leave the president unable to defend the country against sudden attack, while "declare" preserved that defensive authority. The distinction between starting a war and responding to one has been debated ever since.

The framers of the Constitution designed the amendment process to be difficult

Amending the Constitution requires substantial and widespread public support. Since 1879, more than 10,000 amendments have been proposed—many repeatedly—ranging from banning flag burning to repealing the income tax. This resource highlights some of the most notable failures.

Should the US have entered into World War I?

America entered World War I in 1917, but had remained neutral until that point. President Woodrow Wilson addressed Congress, further underlining the USA's neutrality. Eleven weeks later, he asked for a declaration of war. With attacks by German saboteurs on an American munitions depot, it seemed he had no choice. But did he? This article asks what might have happened if the US stayed out of WWI.

Since World War II, formal declarations of war and peace treaties have become increasingly rare, replaced by cease-fires, authorizations of force, and "special military operations."

Nixon argued that the War Powers Resolution unconstitutionally restricted his authority

In his veto message, Nixon argued that the resolution would dangerously curtail the president's ability to respond to international crises and that only a constitutional amendment could properly define the limits of executive war powers. Congress disagreed and overrode the veto.

A formal declaration of war automatically triggers hundreds of statutes granting the president sweeping domestic authority

Beyond authorizing military force abroad, a formal declaration activates a wide range of domestic powers, including authority over enemy property, trade restrictions, and emergency economic authority. It also waives the 60-day time limits under the War Powers Resolution.

Franklin D. Roosevelt's 1941 speech framed World War II as a global fight for universal rights

Eleven months before the attack on Pearl Harbor, President Roosevelt outlined four fundamental freedoms that, in his words, people "everywhere in the world" ought to enjoy—speech, worship, freedom from want, and freedom from fear.

Presidents have often used military force without formal declarations of war

Although the Constitution grants Congress the power to declare war, American presidents have repeatedly ordered military action without formal declarations. These precedents have expanded executive authority in national security beyond what the framers likely envisioned.

The 22nd Amendment was a reaction to Roosevelt's four terms

After Franklin D. Roosevelt won four elections, Congress moved to prevent future presidents from holding power indefinitely. Ratified in 1951, the 22nd Amendment set a firm two-term limit as a safeguard against extended presidencies.

The War Powers Act of 1973 was passed over Nixon's veto to limit the president's ability to wage war unilaterally

Passed in the aftermath of the Vietnam War, the War Powers Resolution requires the president to notify Congress within 48 hours of deploying forces and to end military operations within 60 days without congressional approval. Nixon vetoed the bill, arguing it was unconstitutional, but Congress overrode his veto.

In his 1859 annual message to Congress, President Buchanan articulated a narrow view of presidential military authority

Buchanan argued that the president lacked constitutional authority to launch offensive military action without congressional approval, a view that reflected the prevailing interpretation of executive war powers throughout much of the nineteenth century.

Congress has unsuccessfully voted on war powers resolutions over Trump's military operations in Venezuela and Iran

After Trump ordered unilateral military operations in both Venezuela and Iran without congressional authorization, lawmakers from both parties introduced war powers resolutions to block further action. Each effort failed, with Republican majorities largely supporting the president.

Thousands of constitutional amendments have failed

Of nearly 12,000 proposed constitutional amendments, only 27 were ratified. This article highlights radical failed proposals that would have renamed the country, abolished the presidency, capped personal wealth, or fundamentally rewritten how American democracy works.

Roosevelt’s post-Pearl Harbor address became one of America’s most iconic speeches

Delivered to a joint session of Congress on Dec. 8, 1941, President Franklin D. Roosevelt declared Dec. 7 “a date which will live in infamy.” The speech, heard by tens of millions of Americans, helped consolidate national support for entering the war.

Roosevelt chaired more than 3,000 hours of debate to produce the Universal Declaration of Human Rights

Roosevelt led the drafting committee for the Universal Declaration of Human Rights, guiding representatives from 18 nations through debate on conflicting ideas about rights, government, and citizenship. The General Assembly unanimously adopted the final document in December 1948.

The League of Nations was the predecessor to the UN—and the US never joined

The League of Nations—established in 1920 after World War I—was the first global organization aimed at maintaining world peace. Although US President Woodrow Wilson championed its creation, the United States never joined.

The Barbary Wars were an early test of whether a president could wage war without a formal declaration from Congress

Jefferson sent naval forces against North African pirates without a congressional declaration of war, acting under his own authority. Years later, Madison took the opposite approach and formally sought congressional authorization.

Congress descended into fistfights, duels, and violence before the Civil War

In the decades before the Civil War, members of the United States Congress carried weapons, assaulted colleagues, and, in one case, a congressman killed another in a duel. The violence was driven largely by sectional conflict over slavery and foreshadowed the nation's descent into war.

The Prize Cases established that the president can respond to an attack without waiting for Congress to act

When Lincoln blockaded Confederate ports at the start of the Civil War without congressional authorization, the Supreme Court upheld his actions, ruling that a president does not initiate war by responding to an attack and need not wait for Congress when the nation is already under threat.

Term limits for Congress face a steep constitutional hurdle

Although polls show overwhelming support for congressional term limits, this would require a constitutional amendment. Since 1995, the Supreme Court has barred states from imposing their own limits, leaving only the difficult Article V amendment process as a path forward.

Read an analysis of Roosevelt’s famous Congressional address by a speech writer

Former White House speechwriter Bob Lehrman breaks down why Roosevelt’s 520-word “Infamy” speech endures—showing how FDR used structure, urgency, radio-era reach and careful omissions to rally the nation and win near-unanimous support for war.

3 states did not officially ratify the Bill of Rights until 1939

Massachusetts, Connecticut, and Georgia originally rejected or tabled the amendments in 1791. With Virginia's ratification already clearing the three-fourths threshold of adoption, there was no legal pressure to revisit it—until all three states acted symbolically on the 150th anniversary of Congressional approval of the amendments.

Before Pearl Harbor, the US was a nonbelligerent ally to the Allied powers

Between September 1940 and December 7, 1941, the United States remained officially neutral—yet President Roosevelt incrementally shifted policy from “cash‑and‑carry” to Lend‑Lease, funneling critical military aid to Britain and other allies without entering the war.

War-making authority is divided between Congress and the president in the Constitution

Article I grants Congress the power to declare war and fund the military, while Article II makes the president commander in chief. However, the Constitution does not clearly delineate where one authority ends and the other begins, creating a tension that has never been fully resolved.

Truman's decision to enter the Korean War without congressional authorization marked a major shift in presidential war powers

Rather than seeking a declaration of war, Truman sent troops to Korea under his own authority, citing the UN Charter and his role as commander in chief. The decision set a precedent that subsequent presidents have relied on ever since.

The Senate's filibuster—a procedure that allows for unlimited debate—is not in the Constitution

In the United States Senate, the filibuster enables senators to delay or block legislation. Ending debate became possible in 1917 with a cloture rule requiring a two-thirds vote. In 1975, that was changed to 60 votes in most cases.

Over a century ago, fewer than 1% of Americans paid income taxes—but the cost of World War II prompted the federal government to greatly expand the number of people required to pay income taxes.

The War Powers Act may have ironically given presidents more discretion to engage in hostilities, not less

In this wide-ranging podcast on Congress's power to declare war, scholar Gary Schmitt argues that the War Powers Act, ironically, gave presidents a legal framework for initiating hostilities, creating a 60-day window for unilateral action that hadn't existed before.

The 21st Amendment was the only amendment to repeal another

The 1933 constitutional amendment rolled back 1920's 18th Amendment, better known as Prohibition, which outlawed "the manufacture, sale or transportation of intoxicating liquors."

The Bill of Rights originally proposed 12 amendments, not 10

Congress proposed 12 amendments in 1789, not 10. Of the two amendments not ratified, the one on congressional pay raises remained dormant for 203 years before finally becoming the 27th Amendment in 1992.

A legal scholar argues that the existing war powers framework may collapse in the event of a major power conflict

The legal tests presidents have used to avoid seeking congressional authorization were designed for weaker adversaries. This piece argues that those tests fail against similarly armed competitors, where even limited strikes risk significant escalation, potentially triggering a constitutional crisis over who has the authority to respond.

Ratified in 1868, the 14th Amendment guaranteed citizenship to all people born in the United States and required states to provide equal legal protection to all.

The 2001 Authorization for Use of Military Force has been used by five administrations to justify military operations in at least 22 countries.

Japan's imperial expansion in Asia in the 1930s set the stage for war with the US.

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The failures of the interwar period made the case for a new international system

After World War I, countries devalued their currencies, raised tariffs to block imports, and seized territory unchecked, with the international community unable to organize effectively to stop them. The result was a global depression and, eventually, another world war.

Worried that Nazi Germany could weaponize nuclear fission first, Albert Einstein wrote a 1939 letter warning President Roosevelt about the possibility of atomic bombs—a decision he later regretted.

Early American citizenship was defined inconsistently by individual states.

Future President Abraham Lincoln challenged Polk’s justification for war with Mexico

As a freshman congressman, Abraham Lincoln introduced the “Spot Resolutions,” demanding President Polk prove that Mexico had attacked on US soil. This constituted Lincoln’s first major political stand and highlighted growing dissent over the war.

The ACLU was founded in 1920 in direct response to the suppression of speech during World War I

The mass arrest and prosecution of anti-war activists, socialists, and immigrants under the Espionage and Sedition Acts prompted a group of civil libertarians to form the American Civil Liberties Union to defend constitutional rights.

James Monroe first outlined what became known as the 'Monroe Doctrine' during his 1823 Annual Message to Congress

President Monroe used his Annual Message to Congress to warn European powers against further colonization in the Western Hemisphere, asserting US opposition to foreign intervention and laying the foundation for a cornerstone of American foreign policy that remains to this day.

Hollywood helped fund American military activity by boosting bond sales

To help fund its WWI military activity, the US introduced Liberty Bonds—government-issued debt marketed directly to the public. Starting at $50, the campaign targeted working Americans and offered Thrift Stamps to make bond-buying more accessible. Hollywood led the charge, with stars like Charlie Chaplin and Mary Pickford boosting bond sales.

Youngstown Sheet & Tube Co. v. Sawyer established the framework courts use to evaluate presidential war powers

When Truman seized US steel mills during the Korean War, the Supreme Court ruled that he had overstepped his authority. Justice Jackson's concurring opinion held that presidential power is strongest when Congress authorizes action, uncertain when Congress is silent, and weakest when Congress explicitly refuses authorization.

Franklin D. Roosevelt's 1937 court-packing plan sought to expand the Supreme Court—and failed

Frustrated by Supreme Court rulings against the New Deal, Franklin D. Roosevelt proposed expanding the court in 1937. The failed plan triggered fierce backlash and is regarded as the last serious presidential attempt to alter the court's size for ideological ends.

How the US entered WWI in 1917

Originally taking a position of neutrality during the course of World War I, the United States of America eventually relented. Entering the war in 1917, support for the British and French had risen and Americans were incensed by Germany's overtures to Mexico and U-boat attacks that sank ships and ended American lives. See how and why the US entered WWI in this article.

The Third Amendment bars the forced housing of soldiers in private homes

The amendment was designed to address a specific grievance of the Colonies and remains the only Bill of Rights provision that has never been directly tested by a Supreme Court ruling on its merits.