The open seat in Arizona's 1st Congressional District, created by incumbent Republican David Schweikert's September 2025 switch to the gubernatorial race, has driven trader consensus toward Democrats at 67.5% implied probability, reflecting the loss of incumbency advantage in this Tossup-rated battleground per Cook Political Report. State Rep. Amish Shah leads the Democratic primary field per a February Highground survey, building on his narrow 2024 loss to Schweikert, though the DCCC's May 4 endorsement of Marlene Galán-Woods signals a contested July 21 primary. Republicans face a fragmented primary with no clear frontrunner—Joseph Chaplik leads an April NextGen poll at 24%, amid recent Trump backing for Jay Feely and a May 5 debate—compounding midterm headwinds for the president's party. Primaries on July 21 could reshape general election dynamics.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAZ-01 House Election Winner
AZ-01 House Election Winner
Democratic Party
68%
Republican Party
32%
Democratic Party
68%
Republican Party
32%
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: Dec 16, 2025, 11:39 AM 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...The open seat in Arizona's 1st Congressional District, created by incumbent Republican David Schweikert's September 2025 switch to the gubernatorial race, has driven trader consensus toward Democrats at 67.5% implied probability, reflecting the loss of incumbency advantage in this Tossup-rated battleground per Cook Political Report. State Rep. Amish Shah leads the Democratic primary field per a February Highground survey, building on his narrow 2024 loss to Schweikert, though the DCCC's May 4 endorsement of Marlene Galán-Woods signals a contested July 21 primary. Republicans face a fragmented primary with no clear frontrunner—Joseph Chaplik leads an April NextGen poll at 24%, amid recent Trump backing for Jay Feely and a May 5 debate—compounding midterm headwinds for the president's party. Primaries on July 21 could reshape general election dynamics.
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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