The U.S. Senate has, for the first time, rebuked President Trump regarding the ongoing conflict with Iran, passing a resolution requiring congressional approval to continue military action. This largely symbolic measure passed 50-48 due to the absence of two Republican senators, despite previous attempts by Democrats being blocked by the Republican majority. While Trump can likely ignore the resolution, it represents a crack in the president’s firm grip on his party, following similar action taken by the House of Representatives earlier this month. Several Republican senators have expressed concerns about the war’s progress and the outcomes claimed by Trump. Democrats criticized Trump’s handling of the situation, questioning the benefits the U.S. has received. The vote indicates growing internal dissent within the Republican party regarding the president’s foreign policy decisions concerning Iran.