House Democrats, with the support of four Republican lawmakers, successfully passed a vote to halt President Donald Trump’s military campaign in Iran without congressional approval. The measure passed 214-208, largely along party lines. The Republican defectors included Reps. Warren Davidson, R-Ohio; Brian Fitzpatrick, R-Pa.; Tom Barrett, R-Mich.; and Thomas Massie, R-Ky. Barrett, an Army veteran, stated, "Only Congress has the authority to authorize military action in Iran." This vote, largely symbolic, highlights a growing division within the Republican party regarding the administration's Iran policy and a lack of transparency from the White House on military actions.

This effort underscores ongoing divisions among Republicans concerning the war in Iran. Democrats utilized a "privileged resolution" mechanism to force the vote, allowing rank-and-file lawmakers to advance legislation despite potential opposition from House GOP leadership. Rep. Jason Crow, D-Colo., a key proponent, criticized the ongoing conflict, stating, "The President’s war with Iran has been an unmitigated disaster." The vote occurred amidst escalating tensions, following recent Iranian actions that killed U.S. service members in Jordan and Iraq, and as U.S. forces continued strikes on Iranian military infrastructure. This marks another instance of House Republicans challenging Trump's policies, reflecting the GOP's narrow majority in Congress.