3.3.1 – Relationships with ither institutions
3.3.2 – Limitations on presidential power
3.3.4 – Interpretations and debates
On 1 May 2026, the United States reached the sixtieth day of its war with Iran, triggering a deadline embedded in one of the most contested statutes in American constitutional history. The 1973 War Powers Resolution, passed by Congress over President Nixon’s veto in the wake of Vietnam, requires presidents to terminate military operations after sixty days unless Congress has formally authorised the use of force. Donald Trump notified Congress of the Iran strikes on 2 March, but his administration has neither sought authorisation nor publicly conceded that the deadline applies. Vice President JD Vance has dismissed the law itself as “fake and unconstitutional.”
Congress has, so far, failed to assert its authority. A bipartisan Senate war powers resolution was defeated on 15 April by 52 votes to 47, with Republicans holding the line. A parallel House measure was blocked the following day by a single vote. Senate Majority Leader John Thune has declined to hold any public hearing, and Senate Armed Services Chair Roger Wicker has suggested oversight may not begin until “sometime in May,” after the deadline has already passed. Even some Republicans privately uneasy about the war’s expanding cost have voted to shield the President.
The constitutional architecture at stake is significant. Article I gives Congress the exclusive power to declare war; Article II makes the President Commander-in-Chief. The War Powers Resolution was an attempt to reconcile these provisions after a generation of undeclared presidential wars in Korea, Vietnam, and Cambodia. Its enforcement mechanisms, however, are weak. The Supreme Court’s 1983 ruling in INS v. Chadha invalidated the concurrent resolution procedure that allowed Congress to direct withdrawal without a presidential signature. A joint resolution now requires a two-thirds majority to override an inevitable Trump veto, a threshold no recent Congress has reached on a war powers vote. Federal courts, meanwhile, have consistently dismissed war powers lawsuits brought by individual legislators as non-justiciable political questions, from Vietnam to Iraq to Libya.
This is what the imperial presidency looks like in practice. The framers designed a system in which entering war was meant to be harder than leaving it, requiring the deliberate consent of the legislative branch. The Iran deadline reveals that institutional arrangement substantially inverted: presidents now wage war unilaterally, Congress lacks a credible procedural lever to stop them, and the judiciary refuses to intervene. Whether or not 1 May produces a meaningful response, the structural weakness of congressional war-making power is now fully exposed.