LAS VEGAS (AP) — Jim Marchant, a Nevada Republican who led a movement of candidates who promoted Donald Trump's lies of a stolen 2020 election, announced Tuesday that he will run for the U.S. Senate against Democratic incumbent Jacky Rosen in the swing state.

The entrance of Marchant, who lost last year's race for Nevada secretary of state, may be another headache for national Republicans who are trying to prevent a repeat of the midterms. Voters in Nevada and other battleground states rejected candidates who ran on election conspiracies, allowing Democrats to increase their hold on the Senate.

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