Former Pinal County Sheriff Mark Lamb commands trader consensus at 95% implied probability to win Arizona's 5th Congressional District Republican primary on July 21, driven by his early dominance in polls showing 54-55% support among likely GOP voters, President Trump's November 2025 endorsement, and strong fundraising emphasizing grassroots contributions. Key challengers have faltered: state Rep. Travis Grantham withdrew in March 2026 for Air National Guard active duty, while former NFL kicker Jay Feely switched to AZ-01 in December 2025, leaving Lamb with minimal competition from lesser-known candidates like Mike Gross and Daniel Keenan after the March signature filing deadline. Scenarios to upend this include a late-breaking scandal or surge by a dark horse, though ballot closure limits new entrants; early voting begins June 24.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMark Lamb 96.3%
Travis Grantham 2.4%
Jay Feely <1%
$47,269 Vol.
$47,269 Vol.
Mark Lamb
96%
Travis Grantham
2%
Jay Feely
<1%
Mark Lamb 96.3%
Travis Grantham 2.4%
Jay Feely <1%
$47,269 Vol.
$47,269 Vol.
Mark Lamb
96%
Travis Grantham
2%
Jay Feely
<1%
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.
Market Opened: Nov 25, 2025, 5:27 PM ET
Resolver
0x2F5e3684c...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.
Resolver
0x2F5e3684c...Former Pinal County Sheriff Mark Lamb commands trader consensus at 95% implied probability to win Arizona's 5th Congressional District Republican primary on July 21, driven by his early dominance in polls showing 54-55% support among likely GOP voters, President Trump's November 2025 endorsement, and strong fundraising emphasizing grassroots contributions. Key challengers have faltered: state Rep. Travis Grantham withdrew in March 2026 for Air National Guard active duty, while former NFL kicker Jay Feely switched to AZ-01 in December 2025, leaving Lamb with minimal competition from lesser-known candidates like Mike Gross and Daniel Keenan after the March signature filing deadline. Scenarios to upend this include a late-breaking scandal or surge by a dark horse, though ballot closure limits new entrants; early voting begins June 24.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


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