The US Senate has narrowly approved a resolution calling for an end to President Donald Trump’s military involvement in Iran, marking a political setback for the White House as it seeks to advance diplomatic negotiations with Tehran.
The measure passed the Senate by a 50-48 vote after previously securing approval in the House of Representatives. The resolution directs President Trump to withdraw US forces from hostilities involving Iran unless Congress formally authorises further military action.
Although the measure is a concurrent resolution and does not require presidential approval, its passage places both chambers of Congress on record against continued US military engagement in the conflict.
The vote comes amid tensions stemming from a regional conflict that erupted following US and Israeli strikes on Iran earlier this year. The confrontation has affected global energy markets and heightened security concerns across the Middle East.
The Senate action also coincides with a 60-day diplomatic effort by the Trump administration to convert a preliminary understanding with Iran into a comprehensive agreement. Reports suggest the proposed deal could address Iran’s nuclear programme, sanctions relief and arrangements related to the Strait of Hormuz.
Senate Democratic Leader Chuck Schumer spearheaded the push for the vote, arguing that lawmakers should publicly define their position on the conflict and ongoing negotiations.
“Republicans can complain about Trump’s war, his secrecy, and his disastrous deal with Iran all they want behind closed doors, but the only way to ensure this war ends once and for all is for Republicans to act,” Schumer said before the vote.
The resolution previously passed the House with support from several Republican lawmakers, reflecting rare bipartisan disagreement with the administration on war powers and national security policy.
Democrats maintain that President Donald Trump exceeded his constitutional authority by launching military action without congressional approval. However, House Speaker Mike Johnson defended the administration’s approach, arguing that limiting presidential authority during active negotiations could undermine US strategic objectives.
Lawmakers from both parties have also raised concerns about the duration of the conflict and the possibility of renewed military escalation, increasing pressure on the administration to prioritise a diplomatic resolution.
