The Iran war is the most unpopular major conflict in US history
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- The Iran War reached negative 32% net support in June polling, surpassing the Vietnam War's negative 31% final reading to become the most unpopular major U.S. conflict ever recorded.
- The Iran War launched with negative 13% net support — the first U.S. war to begin underwater in public opinion — and has never risen above water at any point during the conflict.
- Defense Secretary Pete Hegseth told a skeptical Senate in April that the administration had 'the support of the American people,' a claim June polling directly contradicts.
- Republicans show a +47% net support for the war itself, but flip to negative 28% when asked about prolonging it rather than cutting a deal to end it ASAP — with 54% wanting a rapid exit.
- Net support for prolonging the Iran War stands at negative 52% among all Americans, per Economist/YouGov polling, versus 28% who support the war and 60% who oppose it.
- The analysis compares 153 public opinion surveys across 7 major U.S. conflicts; Gallup declined to consistently poll the Iran War, leaving Economist/YouGov as the primary data source.
- Economist/YouGov found 65% of all Americans want the U.S. to 'make a deal to end the war in Iran as quickly as possible,' framing the conflict as one Americans want concluded rather than won.
Why it matters: The gap between the Pentagon's April claim of public support and June's negative 32% net rating puts the administration in direct conflict with majority public opinion — and even Republicans, who back the war in the abstract, oppose prolonging it by 28 points, narrowing the political space for escalation.
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