Trader consensus on Polymarket heavily favors Pinal County Sheriff Mark Lamb at 86.5% implied probability to win Arizona's 5th Congressional District Republican primary on August 6, driven by his consistent double-digit polling leads and President Trump's July 16 endorsement, which solidified his frontrunner status in this border-focused district. A mid-July Cygnal poll showed Lamb at 46%, far ahead of State Sen. Travis Grantham's 14% and ex-NFL kicker Jay Feely's 5%, with Lamb's fundraising edge and sheriff profile on immigration boosting sentiment. Grantham holds second at 7.3% on legislative experience, while Feely trails at 2.1%; early voting underway has yet to shift dynamics amid Lamb's momentum.
Experimental AI-generated summary referencing Polymarket data · UpdatedMark Lamb 87%
Travis Grantham 7.3%
Jay Feely 2.0%
Mark Lamb
87%
Travis Grantham
7%
Jay Feely
2%
Mark Lamb 87%
Travis Grantham 7.3%
Jay Feely 2.0%
Mark Lamb
87%
Travis Grantham
7%
Jay Feely
2%
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...Resolver
0x2F5e3684c...Trader consensus on Polymarket heavily favors Pinal County Sheriff Mark Lamb at 86.5% implied probability to win Arizona's 5th Congressional District Republican primary on August 6, driven by his consistent double-digit polling leads and President Trump's July 16 endorsement, which solidified his frontrunner status in this border-focused district. A mid-July Cygnal poll showed Lamb at 46%, far ahead of State Sen. Travis Grantham's 14% and ex-NFL kicker Jay Feely's 5%, with Lamb's fundraising edge and sheriff profile on immigration boosting sentiment. Grantham holds second at 7.3% on legislative experience, while Feely trails at 2.1%; early voting underway has yet to shift dynamics amid Lamb's momentum.
Experimental AI-generated summary referencing Polymarket data · Updated

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