Politics Polymarket July 22, 2026
Mark Lamb Projected to Win Arizona GOP House Primary
AZ-05 Republican Primary Winner
Polymarket prices this Mark Lamb at 100%. The reporting broadly agrees.
Arizona's Republican primary for the 5th Congressional District is set to conclude today, with Mark Lamb projected to win the nomination. The primary has been marked by controversy, with Lamb facing allegations of a sex scandal. According to the market, Lamb is an overwhelming favorite to win, with 100% indicating a strong confidence in his victory. However, the reporting suggests that the scandal may still have an impact on the outcome.
Background
The primary has been a closely watched contest, with several candidates vying for the Republican nomination. Mark Lamb, a former sheriff, has been a frontrunner throughout the campaign, with endorsements from prominent Republicans including President Trump. The Democratic primary has also been competitive, with Elizabeth Lee emerging as a strong contender. The winner of the primary will go on to face Democrat JoAnna Mendoza in the general election, which could determine which party controls Congress after the midterms.
The precedent
- No Republican candidate has won the nomination in Arizona's 5th Congressional District since 2012.
Context compiled by Crowdtells from the public record — verify before relying on it.
What the coverage agrees on
- The Republican primary for Arizona's 5th Congressional District is set to conclude today.
- Mark Lamb is projected to win the nomination.
- The primary has been marked by controversy, with Lamb facing allegations of a sex scandal.
Where sources diverge
- The impact of the sex scandal on the outcome of the primary is disputed, with some outlets suggesting it may still have an impact and others downplaying its significance.
How outlets frame it
- Fox News: Emphasizes the significance of the sex scandal allegations and their potential impact on the outcome of the primary.
- The New York Times: Downplays the significance of the sex scandal allegations and suggests that they may not have a major impact on the outcome of the primary.
What to watch
The primary is set to conclude today, with the winner expected to be announced shortly after polls close. The outcome of the primary will have significant implications for the Republican Party's chances in the general election.
The numbers behind this
Polymarket prices this Mark Lamb at 100%.
24h +14.1 pts 7d +11.6 pts
$143K traded · $24.4K in the last day · $598K resting liquidity · $37.6K open interest
Resolves on: This market will resolve according to the candidate who wins the nomination for the Republican Party to contest the AZ-05 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Republican primary will take place on July 21, 2026. If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other". The resolution source for this market will be a consensus of official Republican sources, including https://www.rnc.org/. Any replacement of the nominee before election day will not change the resolution of the market.
Pricing Polymarket 100%
Sources
- Mark Lamb wins Republican primary, Elizabeth Lee wins Democratic primary in Arizona CD5 kjzz.org
- Will a Sex Scandal Involving Mark Lamb Matter in Arizona GOP House Primary? nytimes.com
- Mark Lamb projected as the Republican nominee for Arizona's 5th Congressional District, AP reports 12news.com
- President Trump reaffirms support for ‘MAGA Warrior’ Mark Lamb azfamily.com
- Mark Lamb Makes “No New Taxes” Promise to Arizona Voters atr.org
Frequently asked questions
AZ-05 Republican Primary Winner
Polymarket prices this Mark Lamb at 100%. The reporting broadly agrees.
What do the sources agree on?
The Republican primary for Arizona's 5th Congressional District is set to conclude today. Mark Lamb is projected to win the nomination. The primary has been marked by controversy, with Lamb facing allegations of a sex scandal.
Where do the sources disagree?
The impact of the sex scandal on the outcome of the primary is disputed, with some outlets suggesting it may still have an impact and others downplaying its significance.
When does this market resolve?
This market resolves on: This market will resolve according to the candidate who wins the nomination for the Republican Party to contest the AZ-05 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Republican primary will take place on July 21, 2026. If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other". The resolution source for this market will be a consensus of official Republican sources, including https://www.rnc.org/. Any replacement of the nominee before election day will not change the resolution of the market.
How are these odds set?
Prediction-market odds are prices set by people trading real money on the outcome, so the price reads as the crowd’s implied probability — not a guarantee or financial advice.
AI-written briefing grounded in 5 sources and the live market, edited by Samuel Jo. Odds are crowd probabilities, not advice — how this works.