ATLANTA — In a landslide victory that represented a resounding rebuke of Donald J. Trump, Gov. Brian Kemp of Georgia won the Republican nomination for a second term on Tuesday, turning back a Trump-fueled primary challenge and delivering the former president his biggest electoral setback of the 2022 primaries.
Mr. Trump had made defeating Mr. Kemp a top priority, seeking retribution for the governor’s decision to certify the 2020 election in Georgia and not acquiesce to the former president’s subversion demands. Mr. Trump personally recruited former Senator David Perdue to run for governor, worked to clear the field for him, recorded television ads, held a rally and even transferred $2.64 million from his political accounts to help him.
Mr. Kemp, 58, won anyway — leading by roughly 50 percentage points with two-thirds of the vote counted, far more than enough to avoid a runoff.
Mr. Perdue had anchored his candidacy on promoting falsehoods about fraud in the last election, blaming Mr. Kemp both for Mr. Trump’s defeat and for his own loss in a 2021 runoff that gave Democrats control of the Senate.