The US Senate has approved a war powers resolution directing President Donald Trump to remove US forces from hostilities with Iran, a rare congressional rebuke of presidential war authority during a live conflict.

Senate roll call vote 184, held on 23 June, recorded 50 votes in favour, 48 against and two senators not voting on H.Con.Res. 86. The House Clerk's records show the House approved the same concurrent resolution on 3 June by 215-208.

The political signal is stronger than the legal effect. Because the measure is a concurrent resolution, it is not presented to the president for signature. Legal analysts have long argued that the War Powers Resolution's concurrent-resolution mechanism is constitutionally vulnerable after the Supreme Court's 1983 decision in INS v. Chadha, meaning the vote should be described as a congressional directive with disputed or limited legal force rather than as a binding statute.

Even with that caveat, the vote matters. It shows bipartisan unease over the Iran conflict and gives critics of the administration a concrete record of congressional opposition.