US Midterms: Democrats Hopeful, but Polls Have Erred Before
Opinion polls have pointed to a strong showing for Democrats ahead of the US midterm elections. Analysts caution that voters who make up their minds late, and problems with how pollsters reach people, could change the picture. Polls have let people down before, so the outcome is not guaranteed.
Context
Context: US midterms are held halfway through a president's four-year term, when all House seats and about a third of Senate seats are up for vote. Their results often shape how much power the president's party has in Congress for the rest of the term.
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