The U.S. Senate passed a resolution calling for an end to military action against Iran without congressional authorization

The U.S. Senate passed a resolution calling for an end to military operations against Iran unless Congress separately authorizes their continuation. The document effectively obligates U.S. President Donald Trump to withdraw American troops from the combat zone against Iran.

Fifty senators voted in favor of the resolution, while 48 voted against it. 

Four Republican senators—Lisa Murkowski, Bill Cassidy, Susan Collins, and Rand Paul—joined the Democrats in supporting the resolution. Meanwhile, Democrat John Fetterman sided with those opposing the resolution.

The House of Representatives had previously approved the resolution. The document is based on the War Powers Act of 1973 and calls for an end to U.S. participation in hostilities against Iran without a separate resolution by Congress.

However, experts note that the practical implementation of the decision remains legally ambiguous, as any attempts to limit the president’s powers could become the subject of legal challenges.

The vote took place on the eve of Donald Trump’s scheduled meeting with Republican senators. At that time, the president was attending a campaign event in Pennsylvania.

Despite the temporary peace agreement reached between Washington and Tehran, the results of the vote demonstrated growing criticism of the military campaign, even among members of the Republican Party. In addition, the Senate’s decision signaled to international partners that the U.S. president does not have unanimous domestic support for continuing the conflict.

Dissatisfaction with the war is intensifying due to its economic consequences. Because of restrictions on shipping in the Strait of Hormuz, the average price of gasoline in the U.S. rose to $4.56 per gallon and remains nearly a dollar higher than before the hostilities began.

According to analysts’ estimates, American consumers have already spent approximately $62 billion more on gasoline and diesel fuel, and the inflation rate rose to 4.2% in May, the highest level since the beginning of 2023.

For Donald Trump, the Senate’s decision posed yet another domestic political challenge ahead of the midterm elections. Some Republicans are calling for a tougher policy toward Iran, but a growing number of party members oppose the war, which is becoming a serious financial and political burden for the U.S. administration.