The U.S. House of Representatives passed a war powers resolution Wednesday aimed at forcing President Donald Trump to end U.S. military action against Iran unless Congress authorizes it, turning months of frustration over the Iran war into a formal rebuke from the chamber.

The vote was 215-208, with four Republicans joining Democrats, according to Al Jazeera. PBS NewsHour, carrying Associated Press reporting, said the measure would halt U.S. military action against Iran and marked a rare break with Trump by a handful of House Republicans.

What the House passed

The resolution seeks to curb the president’s ability to continue attacks on Iran without congressional approval. It follows months of U.S. strikes and retaliatory Iranian attacks across the Gulf, including the latest pressure on Kuwait, Bahrain, and the Strait of Hormuz.

Al Jazeera reported that the Republicans who broke with party leadership were Tom Barrett of Michigan, Warren Davidson of Ohio, Brian Fitzpatrick of Pennsylvania, and Thomas Massie of Kentucky. Democrats were unified behind the measure.

Massie, who co-sponsored the resolution, wrote after the vote that the House was sending a message to end the war. Democratic lawmakers framed the vote as a constitutional challenge to an unauthorized conflict, arguing that Congress, not the president alone, holds the power to declare war.

Why it matters

The House had been expected to vote on a similar Iran war powers measure before the Memorial Day recess, but the vote was pulled when supporters appeared to have enough backing. The House Foreign Affairs Committee Democrats listed a new June 3 statement on passage of the Iran War Powers Resolution, after previously noting the earlier pulled vote.

That makes Wednesday’s vote materially different from earlier congressional pressure. A Senate version had advanced in May, and the House had seen failed or delayed efforts before. This time, the House actually passed a measure calling for the war to stop.

The resolution is still unlikely to become law without more Republican support. Trump is expected to veto any bill limiting his Iran war authority, and overriding a veto would require two-thirds support in both chambers. Wednesday’s 215-208 House tally falls far short of that threshold.

The broader Iran crisis

The vote landed as the Iran conflict continued to strain U.S. politics and Gulf security. PBS/AP reported that the war has now dragged into its third month and has reshaped politics at home and abroad. Al Jazeera noted that the conflict is nearing its 100th day, while negotiations over a potential exit remain uncertain.

For Trump, the House vote does not end the war by itself. But it gives congressional opponents a clearer marker: the first successful House passage of an Iran war powers resolution during this conflict, and a public sign that support for the campaign is cracking even inside his own party.

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Last Update: June 3, 2026