Polling Average
60%50%40%30%20%10%0%
53.0%
17.7%
Republican
Trump Endorsed
Trump EndorsedMark Lamb
Republican candidate for U.S. House in Arizona
RepublicanTrump Endorsed
Trump EndorsedMark Lamb
Republican candidate for U.S. House in Arizona
$19.3K
NOV 7, 2026
General Election
Voters choose the office holder.
Live Odds
Current prediction-market probability for the candidate, updated as market prices change.
Mark Lamb is trading at 92% to win the AZ-05 House winner? on prediction markets.
Candidate Overview
Key details about the candidate’s background, party, office sought and current campaign.
Current roleFormer Sheriff
PartyRepublican
Political ideologyTrump-aligned Republican
GenderMale
LocationArizona
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BackgroundLaw enforcement officer
EducationChandler High School (graduated 1990)
Notable personal detailsMark Lamb is an American law enforcement officer and politician who served as sheriff of Pinal County, Arizona (2017–2024). He previously worked for the Salt River Pima–Maricopa Indian Community Police Department and later joined the Pinal County Sheriff’s Office as a deputy. He has been a frequent media presence, including appearances on the TV series "Live PD."
SourcesShowHide
fec.goven.wikipedia.orglinktr.eeapnews.comaxios.comd3n8a8pro7vhmx.cloudfront.netwikidata.orgtpaction.comamericansheriffllc.comwiki-en.orgelections.maricopa.govcapitolhillaccess.comazsos.govgovsalaries.comvibromedia.comdocquery.fec.govazcleanelections.govde.wikipedia.orgopengovpay.commarklamb.usivoterguide.comvice.comprnewswire.comwlsam.cominmaricopa.comfoxnews.comazfamily.comtennesseestar.comazluminaria.orgjournalaz.comoffgridweb.comprisonlegalnews.orgontheissues.orginstagram.comfacebook.comktar.comballotpedia.orgcronkitenews.azpbs.orgkjzz.orgpolitico.comnytimes.com12news.comcbsnews.comnews.ballotpedia.orgms.nowthehill.comeciks.orgslate.comrollcall.comballotready.orgnga.orggovinfo.govusc-cdn.house.govjustfacts.votesmart.orgdeveloper.ballotpedia.orglegislation.ballotpedia.orgsenate.govdata.ballotpedia.orgcongress.gov
Political Positions
LiberalConservative
Economy & Taxes
Supports reducing wasteful government spending, auditing federal programs, and lowering taxes to promote economic growth. Emphasizes cutting unnecessary or overseas spending and prioritizing fiscal accountability for taxpayers.
Healthcare
Mark Lamb supports maintaining Medicare and Medicaid while opposing expanded taxpayer-funded universal healthcare programs; he has publicly opposed vaccine mandates and emphasizes limited government solutions. His campaign materials prioritize conservative government spending and do not propose major expansions of public healthcare programs.
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Immigration & Border
Supports enforcement-first immigration policies, increased support for ICE and Border Patrol, and harsher treatment/removal of people in the country illegally. Advocates for expanded law-enforcement involvement in immigration and has publicly endorsed tough measures including large-scale removals and detention options. Positions emphasize border security, criminal enforcement against illegal entrants, and limiting access to asylum/regularization pathways.
Abortion & Reproductive Rights
Opposes abortion and identifies as pro‑life, saying life begins at conception and that he will work to protect life. He praised the Supreme Court’s Dobbs decision and says abortion policy should be decided by states rather than the federal government. He criticized a proposed Arizona ballot measure he said would permit abortion up to birth and said he would support measures to protect unborn children.
Climate & Energy
Supports American energy independence and increased fossil fuel production while favoring lower regulation and policies to promote U.S. energy dominance and economic growth. Emphasizes expanding domestic oil and natural gas production and cutting regulations that raise energy costs. Does not advocate for aggressive emissions targets or Green New Deal–style policies in available campaign materials and endorsements.
Public Safety & Guns
Mark Lamb supports robust Second Amendment rights and encourages civilians to carry firearms with training. He strongly backs law enforcement, opposes police defunding, and has used sheriff’s office funds to purchase weapons and ammunition for his agency.
Latest News
AINews Summary
Last updatedJul 29, 2026
Mark Lamb won the Republican primary in Arizona’s 5th Congressional District and is expected to be the GOP nominee in the general election. His campaign has been shadowed by allegations of sexual misconduct, which he has denied, and earlier reports about alleged racist and homophobic text messages. He also received Donald Trump’s endorsement in the race.
fec.gov+58
Articles
CNCBS News28 days ago
Trump-backed Mark Lamb wins Arizona's 5th District GOP primary after misconduct allegations surface
Positive
FNFox News29 days ago
Trump backs Andy Biggs in Arizona's GOP gubernatorial primary race
Positive
SLSalt Lake City Deseret News3 months ago
Here’s how Trump-endorsed candidates are faring in this purple state
Negative
CNCable News Network28 days ago
Live results: Trump-backed Rep. Andy Biggs will win Arizona gubernatorial primary, CNN projects
Positive
Latest Polls
AZ-05 Republican nominee?
Recent polling results and the candidate's current average in the race.
Mark Lamb currently averages 53.0%, ranking first in this race, 35.3 points ahead of the nearest opponent.
Polling average: 53.0%Position: firstMargin: +35.3 ptsLatest poll: 40.0% (Jul 5 - 7)Polls included: 8
Average recalculated from polls through Jul 5 - 7.
Aggregation source: FiftyPlusOne
Endorsements
11AZ-05 Republican nominee?
Campaign Fundraising
Latest report: Cycle 2026Campaign finance totals from the latest available reporting period.
Total raisedCash on hand
$1.2M
$916.7K
$611.1K
$305.6K
$0
2026
LatestYear
Total raised
Cash on hand
Total spent
Burn rate
Cycle 2026
$1.2M
$243.4K
$978.8K
$51.5K
Source: FEC