Trader consensus heavily favors former Pinal County Sheriff Mark Lamb at 90% implied probability to win Arizona's 5th Congressional District Republican primary on July 21, 2026, driven by consistent polling dominance in this open seat race following Rep. Andy Biggs' retirement announcement. Recent NextGen Polling surveys, including a December 2025 ballot test showing Lamb at 55% among likely GOP primary voters, underscore his lead over challengers like state Sen. Travis Grantham (3%) and former NFL kicker Jay Feely (8%), bolstered by President Trump's November 2025 endorsement and Lamb's January 2026 campaign launch highlighting border security and conservative priorities. Low turnout dynamics in safe Republican districts amplify frontrunner advantages, though late endorsements or scandals could shift odds ahead of early voting.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMark Lamb 90%
Travis Grantham 3.8%
Jay Feely 3.0%
$44,316 Vol.
$44,316 Vol.
Mark Lamb
90%
Travis Grantham
4%
Jay Feely
3%
Mark Lamb 90%
Travis Grantham 3.8%
Jay Feely 3.0%
$44,316 Vol.
$44,316 Vol.
Mark Lamb
90%
Travis Grantham
4%
Jay Feely
3%
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...Trader consensus heavily favors former Pinal County Sheriff Mark Lamb at 90% implied probability to win Arizona's 5th Congressional District Republican primary on July 21, 2026, driven by consistent polling dominance in this open seat race following Rep. Andy Biggs' retirement announcement. Recent NextGen Polling surveys, including a December 2025 ballot test showing Lamb at 55% among likely GOP primary voters, underscore his lead over challengers like state Sen. Travis Grantham (3%) and former NFL kicker Jay Feely (8%), bolstered by President Trump's November 2025 endorsement and Lamb's January 2026 campaign launch highlighting border security and conservative priorities. Low turnout dynamics in safe Republican districts amplify frontrunner advantages, though late endorsements or scandals could shift odds ahead of early voting.
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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