Republican leaders in the U.S. House of Representatives canceled a planned vote on a resolution that would require President Donald Trump to seek congressional authorization for military action in Iran. This decision comes just two days after a similar resolution advanced in the Senate, where it received bipartisan support, indicating a rare challenge to Trump's authority. Earlier this year, the House had blocked three war powers resolutions, showcasing strong Republican backing for Trump's military actions, but the margin of support has tightened, with the last resolution failing on a tie vote. Representative Gregory Meeks, the top Democrat on the House Foreign Affairs Committee, expressed that the House had the votes to pass the resolution, prompting speculation that Republican leaders postponed it until after the Memorial Day recess due to anticipated defections among party members. Concerns have been raised about the legality of Trump's military actions, with critics emphasizing that the Constitution grants Congress the power to declare war. Most Republicans, however, maintain that Trump's actions are justified under his rights as commander-in-chief to address imminent threats. The Senate's recent procedural vote to advance a similar resolution saw four Republican senators break ranks, further highlighting the growing bipartisan unease regarding the ongoing conflict.