President Trump launched military action against Iran on 28 February 2026. He did so without congressional authorization. As a result, the 60-day deadline under the War Powers Resolution of 1973 came and went on 1 May. By mid-May, thirteen American servicemembers had been killed. Meanwhile, the Pentagon had spent more than $25 billion on the operation. Gas prices climbed to $4.53 a gallon as Iranian mines closed the Strait of Hormuz to commercial shipping.

For most Democrats, the war presented a hard political problem. However, for the small bloc of Iraq and Afghanistan veterans in the House Democratic caucus, it presented a duty. Since the first strikes, they’ve been calling votes, drafting bills, and giving speeches against the war.

Pat Ryan of New York’s 18th District is an Army veteran with two combat tours in Iraq. Since 2024, he’s co-chaired the Democratic Veterans Caucus, and he’s held that role through the entire conflict. On 4 March, he gathered ten of his fellow veteran Democrats on the Capitol steps. Their demand: Congress reclaim its war-making authority. Two months later, on 5 May, Ryan introduced the No Funds for Iran War Act. Notably, the bill drew fourteen veteran cosponsors plus the ranking Democrats on House Armed Services, Foreign Affairs, and Intelligence.

The progression of votes tells the story of where this is heading. First, in early March, the first Iran war powers resolution failed 212-219. By April, the margin had narrowed to 213-214. Then on 14 May, the third resolution came to the floor. This one was introduced by Rep. Josh Gottheimer of New Jersey. The result: a 212-212 tie. Under House rules, a tie is a defeat. Still, it was the closest call Trump’s war had faced.

Notably, three Republicans crossed the aisle to support the measure. They were Thomas Massie of Kentucky, Brian Fitzpatrick of Pennsylvania, and Tom Barrett of Michigan. Only one Democrat voted against it. That was Rep. Jared Golden of Maine, the most centrist member of his caucus. In fact, Trump publicly threatened Fitzpatrick on the eve of the vote. Fitzpatrick voted yes anyway. As he told reporters, “We don’t report to any party or any person here in D.C.”

A week later, on 21 May, House Republican leaders scheduled another war powers vote. Then they quietly pulled it from the floor. CBS News reported that GOP leaders couldn’t find the numbers to defeat the bill this time. Rep. Gregory Meeks, the top Democrat on the House Foreign Affairs Committee, said his votes were “locked in.” Meanwhile, Speaker Mike Johnson left the chamber without taking questions.

The war powers resolutions force constitutional confrontation on the floor. However, Pat Ryan opened a second front on 5 May with a different tool: the appropriations process. His No Funds for Iran War Act would prohibit any taxpayer dollar from being spent on military action against Iran. The exception: an Authorization for Use of Military Force or a formal declaration of war.

The bill carries fourteen Democratic veteran signatures. Additionally, it has the support of Adam Smith of Washington (ranking on House Armed Services), Gregory Meeks of New York (ranking on Foreign Affairs), and Ted Lieu of California. Specifically, Ryan framed the legislation as the clearest expression of Congress’s Article I authority. “Trump’s Iran war was never authorized by Congress,” he wrote, “and no funds appropriated by Congress should be spent on this illegal conflict.”

Similarly, Adam Smith called it Congress’s obligation to act. “Trump’s war of choice has achieved none of the administration’s stated objectives,” he said. He noted that the war “has surpassed the president’s initial stated timeline of the conflict, which was supposed to last only a few weeks.” Indeed, the White House’s stated goals have shifted repeatedly since February. Iran’s previous leadership is gone, replaced by hard-liners. Meanwhile, the Strait of Hormuz is closed. None of the stated objectives has been met.

Voters don’t track war powers procedure. However, they notice gas prices, body counts, and the question of whether their kids might be drafted. The Democratic Veterans Caucus has been explicit about tying the constitutional fight to those kitchen-table impacts. So has the DCCC. Its chair, Rep. Suzan DelBene, has made $4-per-gallon gas a central piece of the affordability message Democrats plan to run on through November.

On Wednesday, 20 May, the Senate produced its own breakthrough. By a vote of 50-47, senators agreed to discharge a war powers resolution from committee. That was the first procedural success for any Iran-related measure in either chamber after seven prior failures. Four Republicans joined every Democrat present. Specifically: Susan Collins of Maine, Lisa Murkowski of Alaska, Bill Cassidy of Louisiana, and Rand Paul of Kentucky. Three other Republicans missed the vote entirely.

That afternoon, Tammy Duckworth stood outside the Capitol with VoteVets. The veteran-led PAC has been the primary outside ally for the Democratic Veterans Caucus. The signs on the lawn marked the $4.53 gas price. Duckworth is an Iraq War combat veteran who lost both legs when her Black Hawk was shot down in 2004. She made the argument as bluntly as anyone has. “Trump started a war, and he’s made things worse than before,” she said.

That language carries particular weight coming from her. Furthermore, it frames the Democratic case in a way independents can hear. The war was a mistake. The costs are real. Congress has a duty to end it.

The political stakes go beyond this particular war. For the past decade, veteran Democrats have argued that their party should be willing to compete on national security. Now, the Iran fight is the highest-profile test of that proposition. So far, the bench is delivering.

Several names on the war powers cosponsor list are running for reelection in seats that will help decide House control in November. For example, Vindman represents VA-07, rated Lean D after his 2024 flip. Similarly, Houlahan defends a competitive PA-06. Goodlander holds NH-02 by a narrow margin. For each of them, the war is both a substantive obligation and a political asset. They get to demonstrate, in real time, exactly what VoteVets identified as the core veteran advantage. That asset: a willingness to challenge a president of either party when the law and the troops are on the line.

There’s also a counterargument worth taking seriously. The war could end before November through diplomacy, military exhaustion, or a White House climbdown. If it does, the political potency of the war powers fight will fade. In that case, Democrats running on it would need to pivot fast. The Caucus appears aware of this risk. That’s partly why Ryan’s No Funds bill is structured to outlast any single phase of the conflict. The principle isn’t tied to current operations. It’s tied to who decides.

For now, the trajectory of the votes is clear. First, a seven-vote loss in March. Then a tied vote in May. Now, a vote Republicans wouldn’t hold at all. And the Democratic Veterans Caucus has been steering the bus the whole way.