How Accurate Are Midterm Surveys in the United States?
Final Times/Siena polls show Democrats ahead in seven key Senate states, while Republican response rates remain lower than in past cycles.
- New York Times/Siena University polls show Democrats leading in all seven states likeliest to determine control of the U.S. Senate: Michigan, Kansas, Texas, Maine, Ohio, Alaska, and Iowa.
- Pollsters face a 'yawning gap' in partisan enthusiasm, as Democrats report higher motivation to vote than Republicans this year. This 'differential nonresponse' complicates efforts to create an accurate sample.
- Presidential polls underestimated Republicans by around 3 points in 2016 and 2024, and close to 5 points in 2020. However, no similar pattern has emerged in Trump-era midterm elections.
- Democrats lead by enough margin that they could win the Senate even if polls underestimate Republicans by 2016 or 2020 levels. Republicans, however, remain hopeful historical trends will shift results.
- Focus groups now provide alternative insights into voter behavior, though polling remains a central tool for understanding the electorate. The 2026 election results will ultimately test whether current survey methods captured national sentiment accurately.
18 Articles
18 Articles
The recent pre-US Congressional polls suggest a victory of Democrats in both parliamentary chambers, but analysts do not rule out Donald Trump's Republicans being underestimated in the Midterms as well.
The polls are again under scrutiny in the United States in the face of midterms. Following what happened in previous processes, especially in the presidential elections in which support for Donald Trump was underestimated by numerous polls, a key question arises: are current polls really reliable? Yamil Nares, an expert in survey methodology and public opinion, analyzes the issue in France 24.
Can You Trust the Polls?
Nate Cohn: “You can trust them to a degree. You can trust the polls to usually be in the ballpark, but you can’t trust them to be exactly ‘right.’ Polls are inherently imprecise and subject to many sources of error.” “So if by ‘trust’ you mean ‘assume that the leading candidate will win,’ then the answer is ‘no.’ The polls have been wrong by this standard before and they will be wrong again. But if trust means ‘rely on the polls as the best sour…
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