President Donald Trump’s endorsement power earned two more victories on Tuesday night, as Sen. Darline Graham Nordone (R-SC) and Oklahoma Republican Mike Mazzei each won their competitive and much-anticipated primary races.

The 2026 Republican primary season has been laced with tests of Trump’s endorsement power as the president has chosen to weigh in on GOP races and actively play his hand in the midterm elections. His results have been somewhat mixed, with some notable losses in gubernatorial races in states such as Georgia and Iowa, but significant wins in hotly watched congressional races in states such as Kentucky and Louisiana.

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