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Mark Lamb, Alexander Kolodin win GOP nominations; Petersen leads in Arizona primary

Mark Lamb won the Republican primary for Arizona’s 5th Congressional District.

Mark Lamb, Alexander Kolodin win GOP nominations; Petersen leads in Arizona primary
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This article1 analysis · Oct 2, 2026
Jul 21, 2026
tl;dr

Arizona’s Republican primaries produced several general-election matchups: Mark Lamb and Alexander Kolodin won their races, while Andy Biggs won the GOP gubernatorial nomination. Ballots were still being counted in other contests.

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VOTING CLOSED
How does this story look for
Mark Lamb R · AZ
NOT RATEDCLOSED

No good or bad look here

This story reports what happened without casting Lamb in a good or bad light, so readers don’t rate it and it doesn’t count toward Lamb’s record.

● INFORMATIONAL

People in this story

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Mark Lamb
R · AZ

Republican candidate for Arizona’s 5th Congressional District

PRIMARY SUBJECT
Andy Biggs
R · AZ-5

Representative and Republican gubernatorial primary winner

Biggs's version of this story ↗
Donald Trump
R · President of the United States

President; endorsed Andy Biggs

Representative and defeated Republican gubernatorial candidate

Former Arizona GOP chair and defeated Republican secretary of state candidate

Construction business owner and defeated Republican candidate for Arizona’s 5th Congressional District

ALSO MENTIONED  Adrian Fontes, Arizona secretary of state and Democratic incumbent; Alexander Kolodin, Arizona state representative and Republican secretary of state candidate; Brett Newby, Democratic superintendent candidate; Katie Hobbs, Arizona governor and Democratic gubernatorial nominee; Ken Miceli, Republican gubernatorial candidate; Kimberly Yee, Arizona treasurer and Republican superintendent candidate; Kris Mayes, Arizona attorney general and Democratic nominee; Rodney Glassman, Republican attorney general candidate; Scott Neely, Republican gubernatorial candidate; Teresa Leyba Ruiz, Democratic candidate for Arizona superintendent; Tom Horne, Arizona superintendent and Republican primary candidate; Warren Petersen, Arizona Senate president and Republican attorney general candidate

Part of a bigger story

3 OUTLETS
Mark Lamb Wins Arizona Republican Primary for 5th Congressional District

Outlets agree Mark Lamb won the Republican primary for Arizona’s 5th Congressional District. Center outlets place the win among broader Arizona primary results, with one article noting allegations had become a focus of the contest. Right-leaning outlets frame it as part of Trump-backed Republicans’ primary wins in a key battleground state.

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