The United States House of Representatives has passed a measure that seeks to halt President Donald Trump from taking further military action in Iran.
The 215-208 vote, which is largely symbolic, was successful after four Republicans joined Democrats in a public show of disapproval of the war, which began in February.
The vote was to adopt the war powers resolution, which requires Trump to withdraw US forces or seek congressional approval for the conflict.
It is unclear how much legal force this House measure would have. The White House has dismissed the merits of the resolution, saying it is an unconstitutional attempt to restrict presidential power.
But its passing is significant because it adds to the pressure on the White House to find an end to the Iran War, as petrol prices have spiked and public opposition to the war has increased.
This was the fourth attempt by the House to rein in Trump’s war powers. The Senate advanced a similar resolution in May but has yet to hold a full floor vote.
The measure considered on Wednesday was a concurrent resolution. If it is also passed by the Republican-controlled US Senate, it would not require the president’s signature, though it could be subject to a legal challenge.
The vote on Wednesday marked the latest sign of division within Trump’s Republican Party, coming just days after a revolt by conservatives in Congress led his administration to pull back plans for a $1.8b “anti-weaponization” fund for political allies.