Senate Blocks Resolution Aiming to Restrict Trump's Iran Powers

WHO:

IJR - The Senate, President Trump, Democratic Sen. Raphael Warnock of Georgia, Senate Majority Leader John Thune of South Dakota, Senate Minority Leader Chuck Schumer, Democratic Sen. Adam Schiff of California, Sen. John Fetterman of Pennsylvania, and four Republican Senators: Susan Collins, Bill Cassidy, Lisa Murkowski, and Rand Paul.

WHAT:

IJR - The Senate failed to advance a war powers resolution that would direct President Trump to remove U.S. forces from hostilities in Iran.

CBS News - The Senate rejected a motion to discharge the resolution in a 47 to 48 vote.

CBS News - The war powers resolution would direct the president to "remove the United States Armed Forces from hostilities within or against Iran, unless explicitly authorized by a declaration of war or a specific authorization for use of military force."

CBS News - The House passed a separate resolution to force Trump to end the war in Iran without congressional authorization.

WHERE:

CBS News - The events took place in Washington, D.C.

WHEN:

CBS News - The Senate vote occurred on June 16, 2026.

CBS News - The Senate had previously advanced a resolution to limit Trump's war powers in Iran after seven failed attempts last month.

WHY:

CBS News - Lawmakers are eager for more information about the terms of a U.S.-Iran deal that remains secret.

CBS News - The administration argues that the War Powers Resolution of 1973 is unconstitutional and claims that a statutory 60-day deadline for the president to terminate the use of force was paused by a ceasefire in early April.

HOW:

CBS News - The resolution was led by Democratic Sen. Raphael Warnock and was supported by four Republican senators along with nearly all Democrats.

CBS News - A group of Democratic senators sent a letter to the president pressing for clarification on the administration's legal justification regarding hostilities and the ceasefire.

(UPDATED June 17, 2026 17:58 UTC)

The Senate has failed to advance a war powers resolution that would have directed Trump to remove U.S. forces from hostilities in Iran, with the motion rejected in a close 47 to 48 vote. This resolution, led by Democratic Senator Raphael Warnock and supported by several Republican senators, aimed to ensure that military action against Iran would require explicit congressional authorization. Meanwhile, the House has passed a separate resolution to compel Trump to end the conflict in Iran without such authorization, as lawmakers seek more clarity on the administration's legal rationale for its actions.