Mark Lamb Wins Republican Nomination for Arizona 5th District

Mark Lamb won the Republican nomination for the U.S. House of Representatives in Arizona's 5th Congressional District on July 22, 2026. The victory confirms Lamb as the official Republican candidate for the upcoming general election to represent the district in the U.S. House.

Lamb secured the nomination following the primary election process in Arizona. This win marks a critical step in his campaign to secure a seat in Congress, placing him in a position to compete for the district's representation in Washington.

As the nominee, Lamb will now focus his efforts on the general election cycle, where he will face a Democratic opponent. The contest for the 5th District is expected to be a key focal point for Republicans seeking to maintain or expand their influence within the state's congressional delegation.