**Mark Lamb secured the Republican nomination for Arizona’s open 5th Congressional District after winning the July 21 primary with 58.7% against Daniel Keenan, backed by a Trump endorsement and prior name recognition as Pinal County sheriff.** The district, covering East Valley suburbs in Maricopa and Pinal counties, has delivered consistent Republican majorities, with former incumbent Andy Biggs winning by double-digit margins before retiring to run for governor. Elizabeth Lee, a lesser-known newcomer, won the Democratic primary but faces structural headwinds in a seat rated Solid Republican by Cook Political Report and similar outlets. With the November 3 general election still months away and no recent polling shifts or major developments reported since the primaries, trader consensus prices the Republican nominee as the heavy favorite at 90%.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAZ-05 House Election Winner
$34,535 Vol.
$34,535 Vol.
Republican Party
90%
Democratic Party
9%
$34,535 Vol.
$34,535 Vol.
Republican Party
90%
Democratic Party
9%
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Market Opened: Jan 27, 2026, 11:54 PM ET
Resolver
0x2F5e3684c...A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Resolver
0x2F5e3684c...**Mark Lamb secured the Republican nomination for Arizona’s open 5th Congressional District after winning the July 21 primary with 58.7% against Daniel Keenan, backed by a Trump endorsement and prior name recognition as Pinal County sheriff.** The district, covering East Valley suburbs in Maricopa and Pinal counties, has delivered consistent Republican majorities, with former incumbent Andy Biggs winning by double-digit margins before retiring to run for governor. Elizabeth Lee, a lesser-known newcomer, won the Democratic primary but faces structural headwinds in a seat rated Solid Republican by Cook Political Report and similar outlets. With the November 3 general election still months away and no recent polling shifts or major developments reported since the primaries, trader consensus prices the Republican nominee as the heavy favorite at 90%.
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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