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R Republican · U.S. House 5, Arizona · Nov 3, 2026

Mark
Lamb

Republican candidate for Arizona's 5th Congressional District; former Pinal County Sheriff (2017–2024)

Researched checked 6 d ago
sources
21
positions
10
endorsements
20
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Opponent Elizabeth Lee D Compare race →

Background

Mark Lamb is a Republican candidate for Arizona's 5th Congressional District in the November 3, 2026 election. He was born in Hawaii and grew up in Chandler, Arizona, graduating from Chandler High School in 1990. Before entering politics, he worked in various businesses—including paintball and pest and pigeon control—before becoming a police officer and detective. [3, 16, 12]

Lamb served as Pinal County Sheriff from 2017 through 2024, having first been elected to that office in 2016. His campaign materials describe him as a "retired sheriff" and emphasize themes of border security, constitutional rights, and faith. [2, 3, 13]

In the 2026 congressional race, Lamb is seeking to represent Arizona's 5th District, where incumbent Andy Biggs is not seeking reelection. He has received endorsements from organizations including Turning Point Action. [8, 9, 13]

Lamb's campaign platform centers on what he calls "God, Family, Freedom," and he has made immigration enforcement, budget restraint, and election integrity key issues. [1, 2, 17, 19]

At a glance

Party
Republican
Running for
U.S. House · District 5, Arizona
Election
Nov 3, 2026
Website
marklamb.us(opens in a new tab)

Where they stand

Each position links to the page it was drawn from. Quotes are verbatim.

Timeline

  1. Oct 11
    news
    General-election matchup Lamb (R) vs. Lee (D) listed in Arizona congressional race coverage

    Recent Arizona race coverage lists Mark Lamb (R) vs. Elizabeth Lee (D) for District 5. Lamb's stated issues include border security, defending the Constitution, and stopping fentanyl trafficking. No major new policy announcement was found in recent reporting.

    These are all of Arizona's congressional races · Oct 11, 2026 (opens in a new tab)
  2. Oct 8
    news
    Lamb's campaign website removes prominent image of him with Trump

    KJZZ reported that Lamb's campaign website, which had shown a prominent image of Lamb beside Trump, now showed Lamb alone. The outlet described Lamb as supported by Trump and Turning Point Action.

    AZ Republican candidates in competitive races remove ... · Oct 8, 2026 (opens in a new tab)
  3. Oct 5
    endorsement
    NFIB PAC endorses Lamb along with other Arizona congressional candidates

    The National Federation of Independent Business' political action committee endorsed Lamb along with several other Arizona congressional candidates ahead of the November election.

    Small Business Organization Endorses Six Arizona Congressional Candidates Ahead Of November Election - AZ FREE NEWS · Oct 5, 2026 (opens in a new tab)
  4. Oct 4
    poll
    Internal poll shows Lamb leading Lee by 3–5 points; LDS voter pushback reported

    NPR reported an internal Change Research poll shared by Lee's campaign had Lee trailing Lamb by 3–5 points. NPR also reported that some Latter-day Saint voters were put off by the allegations against Lamb. Cook Political Report rated the district 'Solidly Republican.'

    Latter-day Saints women turn away from scandal-plagued ... - NPR · Oct 4, 2026 (opens in a new tab)
  5. Jul 21
    news
    Lamb easily wins Republican primary with 58.7% of the vote

    KJZZ reported Lamb 'easily' won the Republican nomination. The official canvass gives the result as 52,352 votes for Lamb to 36,854 for Daniel Keenan, or 58.7% for Lamb. He advanced to face Democrat Elizabeth Lee in the general election.

    2026 Arizona 5th Congressional District race: The candidates - KJZZ · Oct 6, 2026 (opens in a new tab)
  6. Jul 10
    endorsement
    Trump posts second endorsement of Mark Lamb

    Trump posted a second endorsement of Lamb, according to a campaign-history summary. Lamb already had Trump's support during the race. KJZZ later described the allegations as having done little to derail Lamb's bid for the Republican nomination.

    Mark Lamb | Biography & Public Record - The Conservative Ledger · Sep 17, 2026 (opens in a new tab)
  7. Jul 1
    filing
    FEC filings show Lamb raised $1.22M, spent $978K through July reporting period

    FEC figures reported for Lamb's campaign through the July reporting period show $1,222,217 raised, $978,791 spent, and $243,426 cash on hand, with no reported debts.

    Mark Lamb (R) — U.S. Representative, AZ-05 | 2026 profile · Sep 24, 2026 (opens in a new tab)
  8. Jun 22
    news
    Pinal County Attorney closes preliminary inquiry into Lamb, finds no criminal evidence

    Pinal County Attorney Brad Miller closed a preliminary inquiry into whether Lamb had used his position to prevent women from speaking. The inquiry found 'no evidence that Lamb acted in a criminal manner.' It addressed the alleged use of office, not all conduct described in the newspaper's reporting.

    Mark Lamb | Biography & Public Record - The Conservative Ledger · Sep 17, 2026 (opens in a new tab)
  9. Jun 1
    news
    Lamb denies allegations at Encores Conservative Club event, calls them 'lies'

    At an Encores Conservative Club event, Lamb said: 'I've been called a racist. I've been called a misogynist … I'm going to tell you folks, these are lies. Every single bit of it,' referring to the Arizona Republic articles. NPR's Oct. 4 story noted Lamb did not respond to its interview request.

    Latter-day Saints women turn away from scandal-plagued ... - NPR · Oct 4, 2026 (opens in a new tab)

Endorsements

  • Rep. Paul Gosar (R-Ariz.) official
    Listed among Lamb's endorsers by Ballotpedia in its account of the July 2026 Republican primary; date not specified. news.ballotpedia.org
  • House Speaker Mike Johnson official
    Listed among Lamb's endorsers by Ballotpedia in its account of the July 2026 Republican primary; date not specified. news.ballotpedia.org
  • Rep. Eli Crane (R-Ariz.) official
    Listed among Lamb's endorsers by Ballotpedia in its account of the July 2026 Republican primary; date not specified. news.ballotpedia.org
  • NFIB FedPAC (National Federation of Independent Business political action committee) organization
    Endorsed Lamb along with five other Arizona congressional candidates; reported October 4–5, 2026. arizonadailyindependent.com · Oct 4, 2026
  • Mesa Chamber of Commerce organization
    Campaign announcement dated September 27, 2026. marklamb.us · Sep 27, 2026
  • National Association of Police Organizations (NAPO) organization
    NAPO's endorsement letter dated August 17, 2026; campaign published announcement August 19, 2026. NAPO letter states endorsement followed a recommendation from the Arizona Police Association. marklamb.us · Aug 17, 2026
  • Former Maricopa County Sheriff Joe Arpaio official
    Campaign announced his endorsement on July 15, 2026. marklamb.us · Jul 15, 2026
  • Stand for Health Freedom organization
    Campaign announcement dated July 13, 2026. marklamb.us · Jul 13, 2026
  • Apache Junction Grassroots Conservatives organization
    Campaign endorsement page lists this endorsement dated July 12, 2026. marklamb.us · Jul 12, 2026
  • President Donald Trump (reiterated endorsement) official
    Trump reiterated his support on July 10, 2026, per the Arizona Daily Star. tucson.com · Jul 10, 2026
  • Maricopa County Deputies Law Enforcement Association organization
    Campaign announcement dated July 3, 2026. marklamb.us · Jul 3, 2026
  • Republicans of Arizona's Legislative District 15 organization
    Campaign announcement dated June 15, 2026. marklamb.us · Jun 15, 2026
  • Pinal County Deputies Association organization
    Campaign announcement dated June 10, 2026. marklamb.us · Jun 10, 2026
  • Maricopa County Colleges Police Officers Association organization
    Campaign announcement dated June 10, 2026. marklamb.us · Jun 10, 2026
  • Gold Canyon Republican Club organization
    Campaign endorsement page lists this endorsement dated June 2, 2026. marklamb.us · Jun 2, 2026
  • Apache Junction Ladies for President Trump organization
    Campaign endorsement page lists this endorsement dated June 1, 2026. marklamb.us · Jun 1, 2026
  • Arizona Police Association organization
    Campaign announced the endorsement on May 8, 2026. marklamb.us · May 8, 2026
  • Former acting U.S. Homeland Security Secretary Chad Wolf official
    Campaign announced his endorsement on January 26, 2026. marklamb.us · Jan 26, 2026
  • Club for Growth PAC organization
    Campaign announcement dated December 17, 2025. marklamb.us · Dec 17, 2025
  • President Donald Trump official
    First endorsed Lamb in November 2025; reiterated support on July 10, 2026. Quote: 'Mark Lamb has my Complete and Total Endorsement to be the next Congressman from Arizona's 5th Congressional District – HE WILL NEVER LET YOU DOWN!' tucson.com · Nov 1, 2025

Campaign finance

Totals filed with the Federal Election Commission for the 2026 election cycle.

Raised
$1.22M
Spent
$979K
Cash on hand
$243K

As of Jul 1, 2026. Filings are periodic, so recent money may not be included yet. ↳ FEC record H6AZ05265(opens in a new tab)

Sources 21

  1. [1] Mark Lamb · U.S. House, Arizona District 5 | But What Can You Do?(opens in a new tab) Oct 11, 2026
  2. [2] These are all of Arizona's congressional races(opens in a new tab) Oct 11, 2026
  3. [3] AZ Republican candidates in competitive races remove ...(opens in a new tab) Oct 8, 2026
  4. [4] 2026 Arizona 5th Congressional District race: The candidates - KJZZ(opens in a new tab) Oct 6, 2026
  5. [5] Small Business Organization Endorses Six Arizona Congressional Candidates Ahead Of November Election - AZ FREE NEWS(opens in a new tab) Oct 5, 2026
  6. [6] Arizona Small Businesses Endorse Congressional Candidates(opens in a new tab) Oct 4, 2026
  7. [7] Latter-day Saints women turn away from scandal-plagued ... - NPR(opens in a new tab) Oct 4, 2026
  8. [8] Endorsements(opens in a new tab) Sep 27, 2026
  9. [9] Mark Lamb for Congress | Arizona CD-5 | God Family Freedom(opens in a new tab) Sep 27, 2026
  10. [10] Mark Lamb (R) — U.S. Representative, AZ-05 | 2026 profile(opens in a new tab) Sep 24, 2026
  11. [11] Mark Lamb | Biography & Public Record - The Conservative Ledger(opens in a new tab) Sep 17, 2026
  12. [12] Arizona Shouldn’t Pay the Price for Big Tech’s Data Centers(opens in a new tab) Sep 5, 2026
  13. [13] National Association of Police Organizations Endorses Mark Lamb for Congress(opens in a new tab) Aug 19, 2026
  14. [14] Mark Lamb on Newsmax: Put Americans First on Immigration(opens in a new tab) Aug 12, 2026
  15. [15] Mark Lamb defeats Daniel Keenan in the Republican primary for Arizona's 5th Congressional District on July 21, 2026(opens in a new tab) Jul 23, 2026
  16. [16] Mark Lamb on The Steve Gruber Show: Common Sense Leadership, Election Integrity & Arizona's Future(opens in a new tab) Jul 23, 2026
  17. [17] Mark Lamb Speaks to Chandler Republicans About ...(opens in a new tab) Jul 16, 2026
  18. [18] Stand for Health Freedom Endorses Mark Lamb for Congress(opens in a new tab) Jul 13, 2026
  19. [19] Trump reaffirms support for Lamb - Arizona Daily Star(opens in a new tab) Jul 13, 2026
  20. [20] Republicans of Arizona's Legislative District 15 Endorse ...(opens in a new tab) Jun 15, 2026
  21. [21] Mark Lamb Meets with Arizona Builders Alliance, Discusses Reducing Regulations and Supporting Growth(opens in a new tab) May 29, 2026
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