Senate fails to advance war powers resolution aiming to halt US military action in Iran

The Senate on June 16 failed to advance a war powers resolution to halt U.S. military action against Iran, falling short in a 47-48 vote — the ninth such attempt since President Trump launched AP Operation Epic Fury in late February without Congressional approval. Four Republicans broke with their party to support the measure, but it was not enough.
Sen. Raphael Warnock of Georgia, who sponsored the resolution, called the conflict "lawless warmongering" and urged his colleagues to reassert Congress's constitutional authority over war. The House passed its own war powers measure earlier this month, 215-208, but the Senate has now repeatedly fallen short of the votes needed to move forward.
The conflict began on February 27-28, when Trump authorized strikes against Iranian nuclear sites and military targets while aboard Air Force One. The White House notified Congress on March 2, starting a 60-day clock under the War Powers Resolution of 1973. That law requires the president to pull troops back if Congress does not authorize the war. The 60-day deadline passed on May 1 with no vote, according to AP.
Since then, the Senate has tried and failed nine times to force an end to the conflict. A procedural motion did advance once — on May 19, in a 50-47 vote — but the full resolution never passed. The House finally broke through on June 3, when it approved H. Con. Res. 86 by a narrow 215-208 margin, directing the removal of U.S. forces. The Senate has not matched that result.
The four Republicans who voted yes — Sens. Bill Cassidy of Louisiana, Susan Collins of Maine, Lisa Murkowski of Alaska, and Rand Paul of Kentucky — have formed a steady bloc against the president's unchecked war authority. Cassidy, who recently lost a primary after Trump backed his opponent, said he supports dismantling Iran's nuclear program but will not support a war where the White House leaves Congress "in the dark," according to The Guardian.
Sen. John Fetterman of Pennsylvania was the lone Democrat to vote against the resolution, consistent with his stance throughout the four-month conflict. Senate Majority Leader John Thune opposed the measure but told reporters he has requested the full text of Trump's new Iran framework deal for review, according to CBS News.
One reason the vote fell short: many senators are waiting to see the terms of a framework deal Trump announced on June 15. The president touted a 60-day ceasefire extension and the reopening of the Strait of Hormuz, which Iran closed in March, sending oil prices past $120 per barrel. News of the deal pushed Brent crude down to around $80-$82 per barrel, according to Axios.
Analysts say that if the deal, set to be signed on June 19, fails to reopen the Strait quickly, the next war powers vote may finally pass. Vice President JD Vance pushed back on reports that the U.S. agreed to unfreeze $24 billion in Iranian assets as part of the truce. The conflict has already cost U.S. consumers an estimated $58.8 billion in extra fuel costs since February, according to CBS News.
The war has killed between 13 and 17 U.S. service members and damaged or destroyed 42 aircraft, including F-35 stealth fighters and Reaper drones, according to AP. Pentagon estimates put the financial cost at $29 billion for the first 60 days of fighting; independent projections run as high as $72 billion. Global supply chains are still recovering from the Hormuz blockade, and economists warn that grocery and fuel prices will stay high for months.
Senate Democrats plan to use today's failed vote as a rallying point heading into the 2026 midterm elections, arguing Republicans have handed the executive branch unchecked war-making power. Warnock has also called for a bipartisan investigation into a U.S. strike on a school in Minab that reportedly killed 175 people, most of them children, according to AP.
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