The Iran war helped drive a dramatic Democratic victory in the US midterm elections, with voters rejecting Donald Trump’s Republicans amid rising living costs, opposition to the conflict and anger over the administration’s approach to Israel, according to an analysis of the result.
The Democrats now control both the Senate and the House of Representatives for the next two years. The result reflected wider discontent in American society, with the war intensifying existing concerns over the economy, corruption, immigration enforcement and the influence of wealthy donors and corporations.
Donald Trump had expected military action against Iran to force the country into submission. Instead, Iran survived the US-Israeli attacks, launched strikes against US, Israeli and Arab targets, and imposed economic costs that were felt by American households.
Restrictions on shipping through the Strait of Hormuz pushed up the price of groceries, fuel, travel, imports and other essentials. About 90 per cent of voters said the cost of living was a major or crucial factor in deciding how they would vote.
Iranian counterattacks also damaged or disrupted US military bases in the Arabian Peninsula and Jordan, while attacks on Arab energy and transport infrastructure affected global energy supplies. The conflict exposed what the analysis described as serious weaknesses in American military power and strategy.
Voters turned against Trump’s war
Trump also faced criticism for ordering the attack without congressional authorisation, despite opposition from many Americans. Voters who had taken seriously his 2024 promise to end what he called useless foreign wars were said to have been angered by the decision to launch another conflict.
The administration’s stated justification was to prevent Iran from developing a nuclear weapon. But the analysis said existing US and international inspections and intelligence assessments had repeatedly found no evidence that such a programme was imminent.
As the war continued without Iran surrendering, some Americans concluded that Trump had acted largely at Israel’s urging. That perception produced both resentment at the damage inflicted on the United States and frustration that its military strength had failed to achieve the declared objectives.
The election brought together economic concerns and broader questions about US foreign policy, national values and the rule of law. Anger was also directed at political corruption, powerful business and military interests, aggressive anti-immigration policing and media organisations seen by critics as failing to provide an accurate account of events.
Vice President JD Vance acknowledged the importance of the conflict in a post-election message, writing: “The reason we lost is the war.” He identified four demands among voters who had moved away from the Republicans: “End the war”, “Focus on the cost of living and inflation”, “Put America First” and “Change our relationship to Israel”.
The result also marked a significant shift in the prominence of the war in Palestine and US support for Israel within progressive Democratic campaigning. Trump’s last-minute pledge to end nearly 4 billion dollars in US military aid to Israel was described in the analysis as an attempt to win over voters, while arguing that the funding would continue through different channels.
The election therefore linked household financial pressure with opposition to the Iran war and growing scrutiny of America’s relationship with Israel. Together, those issues helped turn public frustration into a Democratic takeover of Congress.
