House Democrats' resolution directing President Trump to end military operations against Iran failed on April 16, falling just one to two votes short of passage. The narrow margin reflects deepening fractures within both parties on the war's continuation, with Republicans maintaining near-unity while Democrats showed solid support despite one defection. The GOP's minimal defections signal they're holding the line for now, though Republicans themselves acknowledge the statutory deadline for renewed authorization is approaching in weeks—a pressure point that could shift votes if the conflict persists.