Mark Lamb

Mark Lamb (born July 14, 1972) is an American law enforcement officer and politician who served as sheriff of Pinal County, Arizona, from January 1, 2017 until December 31, 2024. He is a member of the Republican Party. Lamb previously served in the Salt River Pima–Maricopa Indian Community police department. He is a member of the Church of Jesus Christ of Latter-day Saints.

Prior to its cancellation in 2020, Lamb frequently appeared on the TV series Live PD. Lamb also hosted Live PD: Wanted, a spinoff show. Lamb frequently appears on Fox News and Newsmax TV.

Pinal County Sheriff Mark Lamb speaking with attendees at an event for Jason Beck at TYR Tactical in Peoria, Arizona. In November 2019, Lamb called for increased security along the Mexico–United States border to combat drug cartels from harming U.S. national parks.

In May 2020, Lamb stated he would not enforce a stay-at-home order during the COVID-19 pandemic on the basis that he believed it was unconstitutional. In June 2020, he tested positive for COVID-19 a week before his scheduled appearance at the White House for Donald Trump's signing of executive order 13925. In August 2020, The Arizona Republic reported that the charity had raised more than $50,000 but left at least $18,000 unaccounted for and filed largely blank tax filings.

In 2020, Lamb spoke at a convention of the Constitutional Sheriffs and Peace Officers Association, an organization that holds the fringe legal theory that sheriffs are the supreme legal authority in the United States and are not required to enforce laws they believe to be unconstitutional. Lamb ran unopposed for re-election in November 2020 after successfully suing to remove his competition from the ballot. He later described the people as "very loving, Christian people." In April 2023, Lamb announced he would run for the seat held by incumbent Democrat-turned Independent Kyrsten Sinema. In July 2024, Lamb was defeated in the Republican primary by Kari Lake.

2026 Congressional run

In October 2025, after incumbent representative Andy Biggs chose not to seek re-election and to run for governor of Arizona, Lamb entered the Republican primary to succeed Biggs, running on a platform of traditional values, demanding a "national revival of faith, family, freedom" and guns and denouncing "America's moral decay". He received the endorsements of President Donald Trump and Turning Point USA.

Multiple women accused Lamb of sending them explicit photos and sexually charged messages. Another woman said that Lamb had threatened her with felony revenge porn charges if she posted about their relationship. The sexually charged messages are public records in Pinal County and were independently verified by the Arizona Republic and KTAR News 92.3 FM. Lamb did not deny any specific claims against him, but his campaign said that many claims were "baseless and harmful". The Pinal County Attorney's Office concluded a review of materials submitted to the Pinal County Board of Supervisors in 2020 and June 2026 with the finding of "no evidence that Lamb acted in a criminal manner".

Religion Lamb is a member of the Church of Jesus Christ of Latter-day Saints.

Electoral history