The US House of Representatives has approved a measure aimed at preventing President Donald Trump from expanding military operations against Iran.
The resolution passed by a narrow 215–208 margin, with four Republican lawmakers joining Democrats in a rare bipartisan rebuke of the conflict, which began in February.
It marks the fourth effort by the House to limit Trump's authority to conduct military action without explicit congressional authorization, a point critics have repeatedly raised.
The measure now heads to the Republican-led Senate for consideration. However, even if senators approve it, the resolution is not expected to completely block further US military operations involving Iran.
In May, the Senate moved a comparable proposal forward after seven unsuccessful attempts, though it has not yet been brought to a vote before the full chamber.
Wednesday's vote highlights ongoing tensions within the Republican Party. The latest split follows a recent conservative backlash in Congress that prompted the administration to abandon plans for a $1.8 billion "anti-weaponization" fund intended to support political allies.
