The United States House of Representatives has voted in favour of a measure aimed at curbing President Donald Trump’s authority over military operations against Iran, marking a rare but largely symbolic challenge to the White House as the conflict stretches into its fourth month.
The resolution, passed on Wednesday with 215 votes in favour and 208 against, seeks to invoke the War Powers Act of 1973, which requires congressional approval for prolonged military engagements abroad. Four Republicans broke ranks to join Democrats in supporting the measure, reflecting growing unease within parts of the president’s own party over the economic and political costs of the war.
However, the vote is not expected to immediately alter US policy. The Republican-controlled Senate is unlikely to approve the measure, and even if it did, President Trump would retain the power to veto it. Overturning such a veto would require a two-thirds majority in both chambers of Congress, a threshold considered difficult under current political conditions.
The House vote follows months of Democratic-led efforts to assert congressional authority over what they describe as an undeclared war of choice. Lawmakers argue that the administration failed to demonstrate an imminent threat to justify military action and did not secure authorisation for sustained hostilities. Under the War Powers Act, the president must withdraw forces within 60 days of entering a conflict unless Congress approves.
Critics also point to the administration’s failure to fully comply with reporting requirements, including notifications and timelines for troop withdrawal. The White House, however, maintains that the military campaign does not constitute active hostilities requiring congressional consent, especially following a ceasefire declared on 8 April.
Secretary of State Marco Rubio told lawmakers this week that “the war is over,” arguing that the ceasefire effectively ended the need for further authorisation. Democrats on Capitol Hill rejected this interpretation, accusing the administration of sidestepping oversight while continuing limited military operations, including strikes and maritime restrictions affecting Iranian shipping routes.
Despite the declared ceasefire, tensions remain high. Iranian and US-linked forces have continued to engage in limited confrontations, and the broader geopolitical standoff persists. Defence officials have also suggested that any pause in fighting does not legally prevent the administration from resuming strikes without fresh approval, further heightening concerns in Congress.
For now, the House vote stands as a political signal rather than a binding constraint, underscoring deep divisions over presidential war powers but leaving the ultimate authority over military escalation firmly in the hands of the White House.