Trump-backed Republican Karrin Taylor Robson dropped her bid for Arizona governor Thursday, setting up Rep. Andy Biggs (R-AZ) as the only Trump-endorsed candidate in the now two-person GOP primary.

Trump made the rare decision in April 2025 to back both Robson and Biggs in the 2026 Arizona gubernatorial race. The GOP primary to choose who takes on Gov. Katie Hobbs (D-AZ) in the general election grew to three candidates in November 2025, when Rep. David Schweikert (R-AZ) hopped into the race. Robson said she’s bowing out to avoid a divisive primary.

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