The Senate rejected a measure requiring President Trump to end military action against Iran or seek congressional approval.
The resolution failed in a vote that highlighted deepening divisions within the Republican Party over the conflict.
A growing number of Republican senators have broken with the president on the issue in recent weeks.
Lawmakers cited mounting concerns among voters as midterm elections approach.
The war powers resolution aimed to reassert Congress’s constitutional authority over military engagements.
Supporters argued that prolonged hostilities without legislative consent set a dangerous precedent.
Opponents countered that the measure would undermine the president’s ability to respond to imminent threats.
The vote signals potential challenges for Trump’s foreign policy agenda within his own party.
