Republican gubernatorial primary

U.S. Sen. Marsha Blackburn avoids debates in the Republican gubernatorial primary while hosting a post-election fundraiser in Atlanta. Her campaign donated $4.8 million to a dark-money group targeting Rep. John Rose, and a separate group criticizes her fundraising practices. Blackburn claims conservative unity is more important than debates ahead of the August 6 primary.

Victor Marx won Colorado's Republican gubernatorial nomination with a narrow lead over Barb Kirkmeyer, securing 208,085 votes to Kirkmeyer's 205,570. The primary, which took nearly nine days to finalize, will see Marx face Democratic nominee Phil Weiser in November.

President Donald Trump endorsed U.S. Rep. John James in the Michigan governor race, leading to Aric Nesbitt dropping out of the Republican primary and endorsing James. Perry Johnson and Mike Cox criticized the endorsement, while Nesbitt emphasized uniting to defeat Democrats.

Trump-backed Oklahoma state Sen. Mike Mazzei and Attorney General Gentner Drummond advanced to an August 25 runoff in the Republican gubernatorial primary, defeating other candidates in a crowded race. Mazzei, endorsed by Trump, faces Drummond, who emphasizes his military service and tough-on-crime record. Both candidates highlight ties to Trump's agenda.

Trump-endorsed Mike Mazzei and Oklahoma Attorney General Gentner Drummond advanced to a Republican gubernatorial primary runoff, competing to replace term-limited Gov. Kevin Stitt. Mazzei, who hired Roger Stone as a consultant, and Drummond, a former military pilot, highlight contrasting platforms focused on tax cuts, government reform, and conservative policies.

Businessman Zach Lahn's victory in Iowa’s Republican gubernatorial primary over President Donald Trump's candidate marks a rare electoral setback for Trump. The win is noted as a potential indicator of MAHA strength.