Overview
- The Senate advanced a war‑powers measure on May 19 and the House passed a separate resolution on June 4 that would bar continued U.S. hostilities against Iran without explicit congressional approval.
- Both votes were bipartisan with several Republican senators and representatives breaking with party leaders to join Democrats, signaling growing GOP unease with the three‑month conflict.
- The administration says an April ceasefire halted hostilities and paused the War Powers 60‑day clock, but legal experts say that claim is vulnerable and could be tested in court.
- Major procedural obstacles remain because the House and Senate passed different texts, the measures must be reconciled to take effect, and the president is expected to veto any final resolution that reaches his desk.
- Markets reacted to the moves with cryptocurrencies rallying and oil prices and Treasury yields falling, and the votes highlight broader political and electoral pressure over war costs and troop risk.