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Research explains Trump's influence on primary contests
June 03, 2026
ST. LOUIS, Missouri, June 3 -- Washington University in St. Louis posted the following news:

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Research explains Trump's influence on primary contests

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Why are so many candidates backed by President Donald Trump unseating incumbents this primary election season? Some political analysts say the primary wins are proof that the president has significant power to tell Republican voters what to do. But research from Washington University i . . .

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