The resolution failed by a vote of 49 to 50, with Senator John Fetterman of Pennsylvania being the sole Democrat to oppose it. The narrow margin indicated growing Republican dissent, as three Republican senators—Lisa Murkowski of Alaska, Susan Collins of Maine, and Rand Paul of Kentucky—voted against the war for the first time or again.
Senator Murkowski cited ongoing military deployments to the region, stating that hostilities had not ended despite the White House's claim of a ceasefire. Defense Secretary Pete Hegseth affirmed that the administration believed it held sufficient authority to resume attacks without congressional approval.
The White House maintained that it did not require congressional authorization for the military campaign, asserting that hostilities had been terminated. This position contradicted the War Powers Resolution of 1973, which mandates congressional approval after 60 days of conflict.