Democrats have vowed to keep forcing votes on the issue as they seek public testimony from administration officials.

The measure, which would have blocked President Trump from continuing military force against Iran, fell short of the simple majority needed to advance.

The military campaign has killed Supreme Leader Ayatollah Ali Khamenei, sunk at least 10 Iranian warships and struck more than 1,000 targets.

The blockade could derail a tenuous ceasefire after just five days. Vice President JD Vance said the U.S. remains open to diplomacy if Iran takes “our final and best offer.”