The Senate reversed course late Wednesday night from a day earlier on a resolution aimed at limiting President Donald Trump’s war powers in the Iran conflict, giving the president a legislative victory over congressional dissenters on how his administration is handling the military conflict with Iran.

The measure was initially introduced by Sen. Tim Kaine (D-VA) and would have required the president to remove the U.S. military from engaging in combat “within or against Iran” unless a congressional vote granted him full authorization. On Tuesday, four Republican senators broke with the party to advance a resolution passed in the House of Representatives to limit the president’s war powers. Two Republicans, Sen. Rand Paul (R-KY) and Sen. Bill Cassidy (R-LA) switched their votes on Wednesday night, and Kaine’s resolution failed to advance in a 47-50-1 vote. Paul voted present, and Cassidy voted against advancing it on Wednesday.