Mark Lamb

Republican · AZ · Former Pinal County Sheriff

Mark Lamb is a Republican candidate in the August 4, 2026 primary for U.S. Representative for Arizona's 5th Congressional District (open seat).

Campaign Finance Information · United States Representative, Congressional District 5 · November 3, 2026

Data last updated July 24, 2026

Source: FEC · 2026 cycle · fec.gov

Track record

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General · 3 records

President Donald Trump reaffirmed his endorsement of Mark Lamb for the U.S. House seat in Arizona's 5th Congressional District, in a post on Truth Social.
July 10, 2026
Source: azfamily.com · researched September 5, 2026
On June 22, 2026, the Pinal County Attorney's Office closed its review of allegations concerning former Sheriff Mark Lamb, reporting that the evidence reviewed did not establish an Arizona criminal-law violation.
June 22, 2026
Source: azfreepress.com · researched July 14, 2026
As Pinal County sheriff, publicly refused to enforce the governor's coronavirus emergency orders, saying he did not want to make criminals of business owners trying to keep from going under. He was one of two Arizona sheriffs to take that position.
April 30, 2020
Source: phoenixnewtimes.com · researched September 5, 2026

Candidate Ethics · 1 record

As Pinal County sheriff, Mark Lamb incorporated the American Sheriff Foundation in 2018; Arizona Luminaria reported that the foundation failed to file several annual reports, had its IRS tax-exempt status revoked, and faced administrative dissolution after state officials reviewed its noncompliance.
December 20, 2024
Source: azluminaria.org · researched July 6, 2026

United States Representative, Congressional District 5 · November 3, 2026 · Congressional District 5 (119th Congress), Arizona

U.S. Representative, Arizona's 5th Congressional District · July 21, 2026 · Congressional District 5 (119th Congress), Arizona

Profile last researched August 6, 2026.