Former Pinal County Sheriff Mark Lamb commands 95.8% trader consensus to win Arizona's 5th Congressional District Republican primary on July 21, 2026, after incumbent Rep. Andy Biggs launched a gubernatorial bid, vacating the safe Republican East Valley seat encompassing Gilbert, Chandler, and Mesa. Lamb's October 2025 entry, Donald Trump's November endorsement, and early polls—such as a December 2025 survey showing his 54%+ leads over state Rep. Travis Grantham, ex-NFL kicker Jay Feely, and others—have fragmented opposition and built insurmountable momentum via name recognition and conservative credentials. No major developments have emerged in the past 30 days. Upsets could stem from scandals, rival consolidation, or endorsement reversals, but structural advantages make shifts unlikely.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMark Lamb 95.8%
Travis Grantham 4.0%
Jay Feely <1%
$47,308 Vol.
$47,308 Vol.
Mark Lamb
96%
Travis Grantham
4%
Jay Feely
<1%
Mark Lamb 95.8%
Travis Grantham 4.0%
Jay Feely <1%
$47,308 Vol.
$47,308 Vol.
Mark Lamb
96%
Travis Grantham
4%
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 95.8% trader consensus to win Arizona's 5th Congressional District Republican primary on July 21, 2026, after incumbent Rep. Andy Biggs launched a gubernatorial bid, vacating the safe Republican East Valley seat encompassing Gilbert, Chandler, and Mesa. Lamb's October 2025 entry, Donald Trump's November endorsement, and early polls—such as a December 2025 survey showing his 54%+ leads over state Rep. Travis Grantham, ex-NFL kicker Jay Feely, and others—have fragmented opposition and built insurmountable momentum via name recognition and conservative credentials. No major developments have emerged in the past 30 days. Upsets could stem from scandals, rival consolidation, or endorsement reversals, but structural advantages make shifts unlikely.
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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