Poll: U.S. Voters Reject Pro-War Candidates by Three-to-One Margin Ahead of Midterms

A YouGov survey conducted on the eve of the 2026 midterm elections reveals that American voters are significantly more likely to punish candidates who supported the U.S.-Israel war against Iran than to reward them. The poll, released Monday, found that 44 percent of respondents said a candidate’s backing for the conflict made them less likely to offer support, compared to just 13 percent who said it made them more likely—a disadvantage of more than three to one.

Roughly 26 percent of those surveyed indicated the war would not significantly influence their vote. Economic concerns weighed heavily on the electorate: 56 percent said the United States should prioritize avoiding domestic price increases over achieving President Donald Trump’s military objectives in Iran, while only 22 percent favored prioritizing the war effort regardless of cost.

On the question of war powers, a clear majority—53 percent—said Congress should have the final say on when the conflict ends, versus 29 percent who believed that authority rests with the president. The U.S. and Israel launched joint military operations against Iran on February 28, and the administration’s decision to proceed without congressional authorization has prompted constitutional debate.

Jonathan Guyer, program director at the Institute for Global Affairs at Eurasia Group, which commissioned the poll, told Al Jazeera the results signal a public desire for legislative assertiveness.

“The story of the economic tradeoff is really important, and then there’s this other story of where Congress has been: Why haven’t lawmakers, not just over the last year but over the last decade, played a bigger role as a backstop on reckless wars launched by presidents?” Guyer said. “I think these numbers show the public really wants Congress to play a bigger role and expects their lawmakers to hold power to account.”

Anti-war lane

The survey underscores the political liability of a conflict that has killed thousands in Iran and contributed to surging prices—a top-tier issue in the November 3 midterms. Trump’s Republican Party suffered one of the most severe electoral setbacks in modern U.S. history, with Democrats retaking both chambers of Congress with substantial majorities and flipping key offices in traditionally conservative states such as Texas.

Those results have intensified an intra-party debate in both camps, pitting establishment hawks against a rising faction opposed to foreign intervention and unconditional support for Israel. In the wake of the Democratic wave, analysts argue the party’s base will expect leadership to take concrete steps to constrain the executive branch and end the fighting.

On Monday, Trump declared that “Iran militarily is effectively over,” though he declined to rule out further military action. A U.S. naval and land blockade around Iran remains in effect.

Guyer predicted that foreign policy—specifically U.S. support for Israel—will emerge as a defining fault line in future election cycles, including the 2028 presidential race.

“I think it does create a lane for people like Senator-elect Abdul El-Sayed, for the wing of the [Democratic] party represented by Mayor Zohran Mamdani, who have a very strong position on this war and on the role of the U.S. in the world that traditional Democrats have been largely silent on,” Guyer said.

A parallel rupture is occurring on the right. Following the midterms, Vice President JD Vance published a lengthy social media post attributing his party’s collapse to the war. Figures such as Tucker Carlson and Marjorie Taylor Greene have similarly denounced the conflict as a betrayal of Trump’s pledge to end overseas entanglements.

While Republicans were the only demographic more likely to support a candidate backing the president’s war, Guyer noted that enthusiasm is “softening.”

“A third of Republicans say that backing the war made a candidate appealing, so it’s kind of small,” he said. “And 40 percent shrugged and said it made no difference.”

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