U.S. Senate approves war‑powers resolution forcing Trump to halt Iran campaign

On June 23‑24, 2026, the United States Senate voted 50‑48 to pass a concurrent war‑powers resolution that orders the withdrawal of American forces from Iran, effectively curbing President Donald Trump's ability to continue the conflict. The measure, identical to one approved earlier by the House, became law without the president’s signature. Five Republican senators—Rand Paul, Susan Collins, Lisa Murkowski, Bill Cassidy and one other—broke party ranks to join Democrats, while the remaining GOP members voted against it.

President Trump responded on his Truth Social platform, posting, “Wow! The Senate just changed its vote on Iran from 50‑48 against, to 50‑47 for. Rand Paul and Bill Cassidy changed. Thank you to Leader John Thune…” He later called senators who supported the vote “lunatics” and accused them of bullying him during a closed‑door meeting with Republican colleagues. Senator Cassidy recalled that Trump “lost his temper” and ordered him to sit down, an exchange that was widely reported. The vote marks a significant legislative check on the executive’s war‑making authority and is likely to shape U.S. policy toward Iran in the coming weeks.