Senate defeats resolution to end US hostilities with Iran

Senate Defeats War Powers Resolution in Narrow 49-50 Vote

The Senate on Thursday failed to adopt a resolution directing President Donald Trump to end the war in Iran or seek congressional authorization for it, marking the 14th time the chamber has considered a war powers resolution since the U.S. and Israel began bombing Iran at the end of February 2026. The resolution had previously passed the House in July by a vote of 214 to 208.

Four Republicans crossed party lines to join Democrats in supporting the resolution: Susan Collins of Maine, Lisa Murkowski of Alaska, Rand Paul of Kentucky, and Thom Tillis of North Carolina, who voted for the measure for the first time. Senator John Fetterman of Pennsylvania was the sole Democrat to break with his party to vote no, mirroring his stance in previous war powers votes. Senator Angela Alsobrooks, D-Md., did not vote.

Economic Strains and Human Toll Drive Political Pressure

The legislative push came as persistent conflict in the Strait of Hormuz triggered severe spikes in fuel prices, with diesel reaching daily records above $6.50 a gallon. Senate Democratic Leader Chuck Schumer of New York argued ahead of the vote that working families are bearing the financial brunt of an unmanaged foreign intervention. “Americans are getting crushed at the gas pumps, working families are getting cleaned out at grocery store counters, and family farms are going under because Trump took this country to war without authorization, without a plan, and without a second thought to the consequences,” Schumer said.

Supporters of the resolution also pointed to mounting human and financial costs. According to Pentagon estimates cited by lawmakers, the war has cost roughly $42 billion. Department of Defense figures confirm that at least 19 U.S. service members have been killed since fighting broke out in February, alongside more than 750 injuries. Senator Andy Kim of New Jersey noted that higher petrol prices have cost American households about $900 each since the war began.

Political Realignment Ahead of the November Midterms

The late-September vote represents likely the final opportunity for lawmakers to put the Senate on the record regarding the conflict before leaving Washington for the November midterms. While leadership defended the administration’s trajectory—Senate Majority Leader John Thune of South Dakota dismissed the vote as political while acknowledging that members want a swift end to the war—campaigning Republicans in competitive races have begun shifting their messaging.

Among those publicly questioning the economic fallout is Rep. Ashley Hinson, a Republican from Iowa running for an open Senate seat. “Iowans are being squeezed and shouldn’t have to foot the bill at the pump or the checkout line for the war in Iran,” Hinson wrote in a social media post. Similarly, Mike Rogers, the GOP nominee for Senate in Michigan, stated that the conflict must end promptly to lower mounting family costs.

President Trump warned during an address to the United Nations that a formal peace deal with Iran may not materialize until after the November elections. Meanwhile, Iranian President Masoud Pezeshkian stated that while his nation remains prepared for a diplomatic solution, it will reject the language of force.