Prediction Edge

Overview

Current roleFormer Sheriff

PartyRepublican

Political ideologyTrump-aligned Republican

Age54 years old (Jul 14, 1972)

GenderMale

Show more

LocationArizona

BackgroundLaw enforcement officer

Notable personal detailsMark Lamb is an American law enforcement officer and Republican politician who served as Sheriff of Pinal County, Arizona from 2017 through 2024. He previously worked in the Salt River Pima–Maricopa Indian Community Police Department and later joined the Pinal County Sheriff’s Office. He ran for the Republican nomination for U.S. Senate in 2024 and is a Republican candidate for Arizona’s 5th Congressional District in 2026.

SourcesShow

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.

Show more

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.

Polls

AZ-05 Republican nominee?
Polling Average
60%50%40%30%20%10%0%
53.0%
17.7%
Mark Lamb
M. Lamb
Daniel Keenan
D. Keenan
Travis Grantham
T. Grantham
Date (Start - End)SpreadLambKeenanGrantham
Polling Average
Lamb+35.3
53.0%17.7%2.4%
Remington Research GroupJul 5 - 7
Keenan+2.0
40.0%42.0%
Pulse Decision SicenceJun 29 - Jul 1
Lamb+34.0
61.0%27.0%
Remington Research GroupJun 22 - 24
Keenan+14.0
32.0%46.0%
Victory InsightsDec 2 - 5
Lamb+62.0
63.5%1.5%1.4%
Victory InsightsDec 2 - 5
Lamb+62.9
69.2%6.3%
NextGen PollingOct 10 - 12
Lamb+51.0
54.0%0.0%3.0%
NextGen PollingJun 4 - 4
Lamb+52.0
55.0%1.0%3.0%
NextGen PollingFeb 26 - 28
Lamb+47.0
49.0%2.0%

Aggregation source: FiftyPlusOne

Fundraising

Latest report: Cycle 2026
Total raisedCash on hand
$1.2M
$916.7K
$611.1K
$305.6K
$0

2026

Latest
Year
Total raised
Cash on hand
Total spent
Burn rate

Cycle 2026

$1.2M
$243.4K
$978.8K
$51.5K

Source: FEC

New updates coming soon

We're monitoring and will update when new data impacts the race.

  • News
  • Endorsements