Four House Republicans joined Democrats on Thursday, July 23, to approve a resolution seeking to halt U.S. military action in Iran unless Congress grants explicit authorization, marking another public break with President Donald Trump and most of the GOP over the conflict. The vote marked one of the clearest Republican rebukes of the Trump administration’s handling of the conflict and revived the debate over Congress’ constitutional authority to approve military action. It is worth noting, however, that hours after the House adopted the measure, a similar resolution failed in the Senate.
Four Republicans cross party lines to halt U.S. military action in Iran
The House voted 214-208 to adopt Concurrent Resolution 89, introduced by Rep. Pramila Jayapal, a Washington Democrat, to limit U.S. involvement in Iran absent congressional approval. Representatives Brian Fitzpatrick of Pennsylvania, Warren Davidson of Ohio, Tom Barrett of Michigan and Thomas Massie of Kentucky joined Democrats in supporting the measure. Notably, the same four Republicans also opposed Trump’s Iran war powers policy in June. According to reports, all 210 Democrats who voted supported the resolution, while 207 Republicans voted against it. Seven Republicans did not vote.
Jayapal said in a press release sent to Newsweek after the vote, “From the beginning, this war has had no clear mission, no strategy, no end goal. Congress has not been consulted. And hostilities have been driven over and over again by a president who won his election by promising to end forever wars.”
Warren Davidson defends Congressional authority
Following the vote, Davidson argued that Congress must reclaim its constitutional authority over decisions to wage war. In a post on X, he wrote that without a clear definition and declaration of the conflict, the U.S. should “avoid / exit the war with diplomacy,” adding, “We must either restore a government small enough to fit within the Constitution, or call another convention of states.”
If we want a war, or need one, we should apply the lessons from history and our Constitution:
– Define the mission.
– Declare/authorize the war.
– Fully fund the war.
– Multiply allies, not enemies.
– Win the war.
– Only then, declare victory.Otherwise, avoid / exit the war…
— Warren Davidson 🇺🇸 (@WarrenDavidson) July 23, 2026
The vote underscored emerging rifts within the Republican Party over continued U.S. military involvement in Iran.
It came days after Defense Secretary Pete Hegseth revealed that the Iran war has already cost an estimated $37.5 billion, while the White House requested $87.6 billion in supplemental funding to sustain military operations and address what the Trump administration calls urgent wartime needs.
Companion resolution fails at Senate
A similar measure failed in the Senate later on Thursday by a 47-49 vote. Ahead of the vote on Joint Resolution 180, Senate Minority Leader Chuck Schumer and the bill’s sponsor, Maryland Democrat Chris Van Hollen, urged senators to support the legislation. Republican Sen. Tim Sheehy spoke against it while honoring U.S. service members killed in combat. Sen. John Fetterman was the only Democrat to oppose the measure. Republican Sen. Susan Collins of Maine was the lone Republican to support it, while Republican Senators Katie Britt, Mitch McConnell, Lisa Murkowski and Rand Paul did not vote. Notably, Murkowski and Paul had previously backed similar legislation.
The 1973 War Powers Resolution
The 1973 War Powers Resolution allows Congress to direct the president to withdraw U.S. forces from unauthorized hostilities. The law requires presidents to notify Congress within 48 hours of introducing U.S. forces into hostilities and generally limits unauthorized military action to 60 days, followed by a 30-day withdrawal period. However, Trump launched military strikes against Iran on February 28 without first obtaining congressional authorization and formally notified Congress on March 2. Democrats have argued the action was unconstitutional and have repeatedly sought to limit the president’s war powers through congressional resolutions. Although those efforts have now passed the House several times, none has succeeded in clearing both chambers of Congress, where Republicans hold majorities.
