Former sheriff Mark Lamb was running against construction business owner Daniel Keenan in Arizona's 5th Congressional District Republican primary.
Republican state Rep. Alexander Kolodin will face Arizona’s Democratic secretary of state, Adrian Fontes, in November’s general election, NBC News projects, after winning the GOP primary.
The former football player faces a steep challenge in November, with Democrats bullish about flipping the open seat.
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Representative Andy Biggs, a conservative Republican and an ally of the president, will try to unite Republicans against Gov. Katie Hobbs in a crucial swing state.
Trump-endorsed Rep. Andy Biggs will take on Democratic Arizona Gov. Katie Hobbs in November.