The U.S. House of Representatives passed a war-powers resolution on Wednesday, June 3, 2026, directing President Donald Trump to end military hostilities against Iran [1], [2].

The vote represents a significant legislative challenge to the administration's foreign policy. By invoking war powers, the House is attempting to compel the executive branch to withdraw U.S. forces and halt ongoing military actions amid growing congressional frustration over the conflict [2], [3].

The resolution passed with a final tally of 215-208 [4]. While the measure was primarily driven by Democratic members, the narrow margin of victory was secured by a small group of Republicans who broke party ranks to support the resolution [3].

Records show that four Republican representatives joined the Democrats in voting for the measure [3]. Among those who defected from the GOP leadership was Rep. Thomas Massie [3].

The move comes after a period of volatility regarding the legislation's progress. Earlier in the month, some reports indicated that GOP leaders had canceled a scheduled vote on the resolution on May 21, 2026 [5]. However, the measure eventually reached the floor for the successful June 3 vote [1].

Under the terms of the resolution, the House is calling for an immediate cessation of hostilities to prevent further escalation in the region [2]. The directive specifically targets the military engagement strategies currently employed by the Trump administration [4].

The House passed a war-powers resolution directing President Trump to end U.S. military hostilities against Iran.

This resolution signals a rare bipartisan fracture within the Republican party regarding the administration's military strategy. While the House has the authority to pass such resolutions, the actual impact depends on whether the executive branch chooses to comply or if the measure leads to further constitutional disputes over the War Powers Act and the president's authority to conduct foreign military operations.