Congress passed a War Powers Resolution this week requiring President Donald Trump to cease unauthorized military operations against Iran, with both chambers approving the measure in a significant assertion of legislative authority over the use of force abroad. The Senate vote, which followed the House's earlier approval, marked a historic moment — the first time both chambers have successfully passed such a resolution curtailing a sitting president's military actions in the region.

The resolution invoked the War Powers Act of 1973, which requires the president to notify Congress within 48 hours of committing armed forces to hostilities and limits engagements to 60 days without congressional authorization. Lawmakers from both parties argued the administration had exceeded its constitutional authority by conducting strikes against Iranian targets without formal approval from Congress.

The Senate vote drew support from a coalition of Democrats and a number of Republican senators who expressed concern about the legal basis for the military action, giving the resolution enough votes to advance. The bipartisan nature of the vote underscored congressional unease with broad executive war powers, though the margin fell short of what would be needed to override a presidential veto.

The White House signaled opposition to the measure, with administration officials arguing the president retains inherent authority as commander-in-chief to respond to threats posed by Iran and its proxies. A veto is widely anticipated, and efforts to secure the two-thirds majority in each chamber necessary to override it face significant obstacles.

The passage of the resolution comes amid ongoing unrest inside Iran, where protests have intensified as citizens demonstrate against the country's ruling clerical establishment. The dual pressures of external military action and internal dissent have placed the Iranian government in an increasingly precarious position, adding complexity to U.S. strategic calculations in the region.