Election 2018
Explore Gallup's research.
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Gallup's editors review six factors that help explain Tuesday's midterm results, ranging from President Trump's impact to the economy and voter engagement.
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Competing factors for the midterms are presidential approval, which would imply GOP losses, and economic sentiment, which would suggest GOP gains.
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Democrats looking for a midterm message beyond opposing Donald Trump have a number of traditional Democratic issues to choose from. Republicans' power issue with core Republicans is immigration.
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Midterm elections are notoriously perilous for the president's party, and Trump's approval rating only makes matters worse. Can he produce another surprise?