US Senate Advances Resolution to Limit Trump’s War Powers Over Iran

The United States Senate has moved forward with a War Powers Resolution that could limit President Donald Trump’s ability to launch or continue military action against Iran without approval from Congress, amid ongoing tensions linked to the conflict.

In a narrow procedural vote on Tuesday, the measure passed 50–47, with a small number of Republican senators joining Democrats in an unusual break from party lines. The vote reflects growing unease among some lawmakers over the continuation of military operations and the lack of a clear end strategy.

Democratic Senate Minority Leader Chuck Schumer strongly supported the resolution, criticising the president’s approach and urging lawmakers to reassert congressional authority over decisions of war and peace.

Supporters argue that the US Constitution gives Congress—not the president—the sole power to authorise military engagement, reinforcing the need for legislative oversight in foreign conflicts.

However, the vote represents only an initial step. The resolution still faces significant obstacles before becoming law, including further votes in the Senate, approval in the Republican-controlled House of Representatives, and the requirement of a two-thirds majority in both chambers to override an expected presidential veto.

Previous attempts to advance similar measures have been blocked multiple times by Republicans in Congress, highlighting deep political divisions over the scope of presidential war powers.

The latest development comes as tensions surrounding US–Iran hostilities continue to impact global markets and fuel debate over America’s long-term military involvement abroad.

While the Trump administration maintains that its actions are legally justified under the president’s authority as commander-in-chief, critics argue that continued military operations risk bypassing constitutional limits and lacking a defined exit strategy.

Under the 1973 War Powers Resolution, a president is generally required to end military action within 60 days unless Congress grants authorisation or an extension is approved for operational necessity.

Despite the administration’s claim that hostilities have been reduced following a declared ceasefire, reports indicate continued military activity in the region, keeping political and legal debates over the conflict active.

Public opinion polls also suggest widespread voter opposition to prolonged military engagement, adding further pressure on lawmakers to act.