The Imperial Presidency
The framers designed a weak executive constrained by Congress — what emerged over two centuries is a presidency with powers to wage war, surveil citizens, impound funds, and govern by decree that no founder would recognize.
The short version
- The Constitution gives Congress — not the president — most of the powers Americans associate with governing: taxing, spending, declaring war, regulating commerce. The presidency was designed to execute, not direct.
- The term 'Imperial Presidency' was coined by historian Arthur Schlesinger Jr. in 1973 to describe the accumulation of executive war and secrecy powers during Vietnam and Watergate — a problem he acknowledged his own party had created.
- Executive tools including signing statements, executive orders, national security directives, and claims of executive privilege have expanded dramatically since the Cold War, each administration inheriting and extending the powers of the last.
- The post-September 11 period produced the sharpest expansion of executive power in modern history — including warrantless surveillance, indefinite detention, and an official torture program — most of which was never formally repealed.
What it is
The presidency the framers designed was deliberately constrained. Article II of the Constitution grants the executive a specific and limited set of powers: command the military, make treaties (with Senate consent), nominate officers and judges (with Senate consent), and faithfully execute the laws Congress passes. The vesting clause — 'The executive Power shall be vested in a President' — was understood at the time as a grant of administrative authority, not a reservoir of inherent power. James Madison, the principal architect of the Constitution, wrote in Federalist No. 51 that the concentration of legislative and executive power in the same hands was the 'very definition of tyranny.' Congress was the primary branch; the president was its agent for execution. That theory has not survived the subsequent two and a half centuries.
The accretion of presidential power has proceeded through several identifiable mechanisms. Executive orders — directives that carry the force of law without congressional approval — were used sparingly through the 19th century and explosively through the 20th. Franklin Roosevelt issued 3,721 executive orders during his presidency, including the order interning 120,000 Japanese Americans during World War II. Signing statements — written declarations issued when a president signs legislation, announcing which provisions the executive intends to follow or ignore — were rare before Ronald Reagan. The Bush administration issued more than 1,200 signing statements in two terms, systematically declining to be bound by statutory constraints on interrogation, oversight, and surveillance. Executive privilege — the claimed right to withhold information from Congress and the courts — has no explicit constitutional basis but has been upheld by courts in limited form since United States v. Nixon (1974), which simultaneously established and bounded it.
The Cold War provided the institutional conditions for the modern imperial presidency. The permanent national security state that emerged after World War II — the CIA (1947), NSC (1947), permanent military establishment, and a nuclear arsenal requiring constant readiness — required executive decisions too fast for congressional deliberation. Each crisis expanded the template: Truman used his Commander-in-Chief authority to send troops to Korea without a declaration. Eisenhower authorized covert overthrows of governments in Iran and Guatemala through CIA findings. Kennedy operated the Cuban Missile Crisis through ExComm, a small executive group with no statutory basis. Johnson and Nixon prosecuted Vietnam through executive authority while systematically deceiving Congress about costs and conduct. Nixon's Watergate — which combined domestic surveillance, obstruction of justice, and claims of sweeping executive immunity — produced the backlash that prompted Schlesinger to name the phenomenon. Congress responded with the War Powers Resolution (1973), the National Emergencies Act (1976), the Foreign Intelligence Surveillance Act (1978), and the Inspector General Act (1978). Each was subsequently circumvented.
The post-September 11 expansion was qualitatively different from its predecessors. Within weeks of the attacks, the Bush administration had authorized a warrantless domestic surveillance program through the NSA — in direct violation of FISA — operating under a classified legal opinion from the Office of Legal Counsel that the president's Article II powers superseded congressional statute. The same OLC produced the 'torture memos,' redefining torture so narrowly that waterboarding, sleep deprivation, and stress positions were declared legal. The administration established Guantanamo Bay as a detention facility explicitly to avoid federal court jurisdiction, and asserted the authority to designate anyone — including U.S. citizens — as an 'enemy combatant' subject to indefinite military detention without charge. The Supreme Court pushed back in Boumediene v. Bush (2008) and Hamdi v. Rumsfeld (2004), but by then the legal architecture had been built and inhabited. The Obama administration declined to prosecute those who authorized the torture program and retained most of the surveillance architecture, extending the Bush-era expanded presidency rather than contracting it.
Why it matters
Presidential power operates as a ratchet, not a pendulum. Each expansion becomes a precedent that the next president inherits as a floor, not a ceiling. The surveillance authorities that Nixon used against political opponents became the infrastructure the Bush administration supercharged after 9/11. The warrantless surveillance the Bush administration ran secretly became, after exposure, a legalized program that the Obama administration defended and expanded. The executive power claims the Obama OLC wrote to justify drone strikes against U.S. citizens abroad became doctrine available to all subsequent presidents. The pattern is not partisan: the presidents who inherit expanded powers virtually never return them. The legal opinions, the classified programs, and the institutional interests of the national security agencies all push toward retention and expansion.
The Supreme Court's landmark limit on executive power came in Youngstown Sheet & Tube Co. v. Sawyer (1952), when the Court struck down Truman's seizure of steel mills during the Korean War. Justice Robert Jackson's concurrence — establishing a three-tier framework for evaluating presidential authority based on its alignment with or opposition to congressional will — remains the primary analytical tool courts use for separation-of-powers cases. But Youngstown was decided at a moment of relatively limited executive power, before the national security state had fully taken root. Subsequent Supreme Courts have been reluctant to adjudicate aggressive executive power claims in the national security domain, frequently dismissing cases on standing, mootness, and state secrets grounds. The practical result is that the executive branch largely self-regulates through the Office of Legal Counsel — a body that has a documented institutional tendency to produce the legal conclusions the administration requesting the opinion desires.
Signing statements represent a constitutional innovation that has received less public attention than its significance warrants. When a president signs a bill into law while declaring in a written statement that the executive branch interprets certain provisions as unconstitutional or as advisory rather than mandatory, the practical effect is a line-item veto — a power the Supreme Court explicitly struck down in Clinton v. City of New York (1998). But signing statements are not reviewed by courts. They are published in the Federal Register, executive agencies receive them, and the provisions the president has disclaimed are not enforced. Congress has no reliable mechanism to compel compliance. The American Bar Association issued a formal report in 2006 concluding that signing statements as used by the Bush administration violated the separation of powers and urged Congress to take action. Congress did not.
The most durable consequence of the imperial presidency is the marginalization of congressional war authority — a shift described in detail in the companion article on congressional approval for war. But the expansion of executive power extends well beyond war: into domestic surveillance through the USA PATRIOT Act and its successors, into economic policy through emergency powers and executive orders, into immigration through prosecutorial discretion and administrative action, and into regulatory policy through the centralization of rulemaking review in the Office of Management and Budget. The framers' assumption that Congress would jealously guard its institutional prerogatives has not been borne out. Members of Congress have powerful electoral incentives to support presidents of their own party and equally powerful incentives to avoid taking hard recorded votes on war, surveillance, and national security — matters where failure can be blamed on the executive and credit is diffuse. The imperial presidency has been built as much by congressional abdication as by executive aggrandizement.