Sen. Kirsten Gillibrand's war powers resolution to force an immediate withdrawal of U.S. troops from Iran failed 49, 50 in the Senate on Thursday, the 13th time the chamber has voted on the issue and the 12th time the effort has come up short.
Three Republican senators crossed party lines to back the measure, but Pennsylvania Democrat John Fetterman voted against it, ensuring the resolution's defeat in what has become a grinding, months-long legislative standoff over presidential authority to wage the Iran campaign.
The vote marks another chapter in Democrats' unsuccessful push to reassert congressional control over the U.S. military commitment in Iran, a conflict that has now cost an estimated $37.5 billion and claimed the lives of 17 American service members, with more than 100 wounded, Newsmax reported.
Gillibrand, a New York Democrat, sponsored the resolution under the War Powers Act framework, which would have compelled the Biden, now Trump, administration to pull troops out of Iran immediately. The final tally fell one vote short of the simple majority needed to advance.
Fetterman was the lone Democrat to vote no. His break with the party on Iran has become a pattern that increasingly frustrates his caucus, though the materials include no public statement explaining his reasoning on this particular vote. The Washington Examiner noted that Senate Republican Leader Mitch McConnell's absence due to health issues also shaped the outcome, making Fetterman's crossover all the more consequential.
On the Republican side, Sens. Susan Collins of Maine, Lisa Murkowski of Alaska, and Rand Paul of Kentucky voted for the measure. Paul has long held non-interventionist views on foreign military deployments. Collins and Murkowski have periodically broken with their party on executive-power questions. None offered public explanations for their votes in the available reporting.
The result was nearly identical to a prior war powers vote that failed 50, 48, with a small handful of Republicans siding with Democrats each time but never enough to carry the day.
Thursday's vote was the 13th time the Senate has taken up a resolution challenging the president's authority to continue military operations in Iran. Senate Republicans have blocked 11 of those 13 measures, Just the News reported.
One resolution did pass the Senate last week, but it was nonbinding, meaning it carried no legal force and never went to President Trump's desk for a signature. That distinction matters. A nonbinding measure is a statement of Senate opinion, not a directive. It changes nothing about troop deployments or presidential authority.
The lone binding measure that cleared the chamber came after a defeated GOP senator flipped his vote, but the broader pattern is clear: Senate Republicans have held the line against Democratic attempts to use the War Powers Act to force a withdrawal.
Democrats have framed these votes as a check on unchecked executive war-making. Republicans have treated them as political messaging tools that would undermine the commander-in-chief during an active military operation.
The war powers fight plays out against a backdrop of escalating costs. War Secretary Pete Hegseth recently appeared before the Senate Appropriations Committee to defend a $95 billion GOP budget package, roughly $70 billion of which would fund the ongoing Iran conflict.
Sen. Patty Murray, the top Democrat on the Appropriations Committee, pushed back sharply during the hearing:
"This war is now spiraling out of control again."
Hegseth countered that the funding was essential to avoid operational gaps:
"Without these funds, we face critical shortfalls."
The budget package is expected to move through reconciliation, the procedural path that requires only a simple majority, which explains why the administration has not needed to negotiate with Democrats on war funding even as it struggles to hold 50 votes on war powers questions. The razor-thin margins on both tracks reveal a Senate deeply fractured over the scope and direction of the Iran commitment.
That fracture has been visible for months. Earlier attempts to curb the president's war powers failed even as peace-deal negotiations were reportedly taking shape, raising questions about whether Congress has any meaningful leverage over the conflict's trajectory.
Thirteen votes and counting. Democrats have managed to peel off three Republican votes on this latest round, the same three senators who have shown willingness to break ranks before, but they cannot overcome the loss of Fetterman without finding a fourth Republican willing to cross over.
The pattern of narrow defeats has not changed the underlying dynamic. Each vote lands within one or two seats of passage, close enough to generate headlines but never close enough to force a policy change.
Several questions remain unanswered. What specific War Powers Act provisions did Gillibrand invoke? What is the current troop count in Iran and under what legal authorization are they deployed? And what, exactly, does Fetterman believe he gains by repeatedly siding against his own party on the defining foreign-policy question of this Congress?
None of those answers emerged from Thursday's vote. What did emerge is a familiar result: Democrats got close, came up short, and have no clear path to a different outcome next time.
When you lose 12 out of 13, the problem is not the other side's obstruction, it is your own coalition's inability to hold together.