Sen. Susan Collins, R-Maine, split from Republican leadership Thursday and voted to advance a war powers resolution on Iran, the first time she has backed such a measure since U.S. and Israeli forces began joint strikes in late February. The motion still failed, 50-47, but Collins's break added a new crack in what had been a mostly unified GOP wall shielding the administration from congressional constraints on the conflict.
Collins and Sen. Rand Paul, R-Ky., were the only Republicans to support the discharge motion, which Sen. Adam Schiff, D-Calif., brought to pull the resolution out of the Senate Foreign Relations Committee. On the other side, Sen. John Fetterman, D-Pa., was the lone Democrat to vote no, continuing his pattern of breaking with his own party on Iran.
The vote marked the sixth time such a motion has failed since the war began Feb. 28. But the timing gave it a different weight. The 60-day clock under the 1973 War Powers Resolution runs out Friday, and what happens next is far from settled.
In a statement posted to her Senate website, Collins framed her vote as a constitutional obligation, not a policy disagreement. She said the Constitution gives Congress an essential role in decisions of war and peace and called for further military action to have a clear mission, achievable goals, and a defined strategy.
Her sharpest line landed on the legal question. As Newsmax reported, Collins described the requirement for congressional authorization as:
"not a suggestion; it is a requirement."
She said she voted to halt hostilities until the administration makes its case to Congress. That language puts her closer to Democrats on process while leaving room to support an authorization if the White House eventually seeks one.
Collins's position is notable because it is narrow. She did not condemn the military campaign itself. She did not question the president's judgment on Iran. She demanded that the executive branch follow the statutory procedure that has been on the books for more than fifty years. Whether one agrees with her vote or not, the argument rests on the text of the law, and that makes it harder for leadership to dismiss.
President Trump notified Congress on March 2, two days after U.S. and Israeli forces launched joint strikes. Under the War Powers Resolution, the president must terminate hostilities within 60 days of that notification unless Congress authorizes the use of force. The law allows a 30-day extension, but only to wind down operations safely, not to continue them indefinitely.
That 60-day window closes Friday. The administration has not obtained congressional authorization. And the White House's legal theory for why that might not matter has drawn skepticism from members of both parties.
Secretary of War Pete Hegseth told the Senate Armed Services Committee that the clock paused when the U.S. and Iran reached a ceasefire on April 8. His argument was direct:
"We are in a ceasefire right now, which our understanding means the 60-day clock pauses or stops in a ceasefire."
Sen. Tim Kaine, D-Va., rejected that reading flatly. "I do not believe the statute would support that," Kaine said. But the pushback was not limited to Democrats.
Sen. Todd Young, R-Ind., questioned whether the ceasefire even held, given continued hostilities. The U.S. military continues to enforce a blockade of Iranian ports, an operation that, by most readings of the law, constitutes ongoing military engagement. Sen. Josh Hawley, R-Mo., said any pause argument should come to Congress in writing. Sen. Thom Tillis, R-N.C., said the statute requires action at 60 days. And Sen. John Curtis, R-Utah, said the law is clear that operations must begin winding down without authorization.
That is five Republican senators expressing some form of concern about the administration's legal footing, even though most of them voted against the Schiff motion. The gap between their stated views and their votes tells its own story. Many GOP members appear to want the White House to seek authorization. They just don't want Democrats to be the ones who force the issue.
The White House now faces a choice. It can send Congress the certification required for a 30-day extension, seek a formal authorization for the use of military force, or assert that the ceasefire suspended the clock, the position Hegseth previewed. Each path carries political and legal risk.
Sen. Lisa Murkowski, R-Alaska, offered a middle road. She said she will introduce an authorization for the use of military force when the Senate returns May 11, complete with guardrails and reporting requirements. "It's not a blank check," Murkowski said. Senate Majority Leader John Thune has not ruled out a floor vote on authorizing the war, though he has made no commitment either.
The recess complicates everything. With the Senate out until May 11, the 60-day deadline will pass with no vote on authorization and no resolution of the legal dispute over the ceasefire clock. That leaves the administration operating in a gray zone, continuing military operations under a legal theory that members of its own party have questioned on the record.
The House has already blocked Democratic efforts to restrict the president's war powers, and there is no indication the lower chamber will move independently. So the Senate remains the only plausible venue for a check, and Thursday's vote showed that venue is still three votes short of the 53 needed to force the issue.
Collins's vote does not exist in a vacuum. The Iran conflict has produced unusual political alignments from the start. Democratic governors have criticized the strikes while conceding the Iranian regime needs to go. Republican hawks have backed the campaign but questioned the legal framework. And intra-right conflict over war powers has flared repeatedly since February.
What Collins did Thursday was not dramatic in outcome, the motion failed, as it has five times before. But her shift matters because it signals that the administration's legal position on the ceasefire clock is not persuading even reliable allies. When a senator who voted with leadership on the first five motions changes course on the sixth, the question is not whether she is right or wrong. The question is what changed.
The answer, by Collins's own account, is the deadline. The 60-day mark is not an abstraction. It is a statutory trigger written into law after Vietnam precisely to prevent open-ended military commitments without congressional consent. Collins appears to believe the administration has run out of time to treat that trigger as optional.
Conservatives who support the Iran campaign, and there are strong reasons to, should still want the administration to put its case before Congress and win an authorization on the merits. The War Powers Resolution exists for a reason. If the mission is sound, make the argument. If the legal theory is solid, put it in writing and let Congress evaluate it. Operating on the assumption that no one will call the question is not a strategy. It is a gamble, and Thursday's vote showed the margin is getting thinner.
The Constitution does not pause for ceasefires. Neither should accountability.
