Arizona's nine House districts feature three solidly Democratic seats held by incumbents in the 3rd, 4th, and 7th, providing a reliable floor for the party. The two most competitive contests—open AZ-1 and AZ-6, both rated toss-ups by nonpartisan forecasters—represent the primary swing factors, with Republicans defending narrow margins in districts that have trended competitive in recent cycles. Midterm dynamics and voter turnout patterns in these battlegrounds keep totals clustered between three and six Democratic wins, as modest shifts in either direction could flip one or both seats. Upcoming general election polling, candidate debates, and national economic or policy developments through November could widen separation by clarifying which party secures the narrow edges in these districts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated4 37.8%
5 29%
3 22%
6 14%
<3
1%
3
22%
4
38%
5
29%
6
14%
7+
1%
4 37.8%
5 29%
3 22%
6 14%
<3
1%
3
22%
4
38%
5
29%
6
14%
7+
1%
All Arizona US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat.
Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected.
Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party.
The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
Market Opened: Aug 11, 2026, 10:12 AM ET
Resolver
0x69c47De9D...All Arizona US House of Representatives elections held as part of the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th congress are included. Special elections to fill a vacancy for the remainder of an unexpired term are not included, whether or not held concurrently with the 2026 United States midterm election. Runoffs for qualifying elections will determine attribution of the relevant seat.
Seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation or vacates their seat after the date of the 2026 United States midterm election, the seat is attributed to the party under which the member was elected.
Members of the House elected as independents who formally caucus, or who announce their intent to caucus, with a party prior to the date of the 2026 United States midterm election are included in that party’s count. If the caucus decisions of relevant members of the US House of Representatives elected as independents cannot be determined as of the date of the 2026 United States midterm election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party.
The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
Resolver
0x69c47De9D...Arizona's nine House districts feature three solidly Democratic seats held by incumbents in the 3rd, 4th, and 7th, providing a reliable floor for the party. The two most competitive contests—open AZ-1 and AZ-6, both rated toss-ups by nonpartisan forecasters—represent the primary swing factors, with Republicans defending narrow margins in districts that have trended competitive in recent cycles. Midterm dynamics and voter turnout patterns in these battlegrounds keep totals clustered between three and six Democratic wins, as modest shifts in either direction could flip one or both seats. Upcoming general election polling, candidate debates, and national economic or policy developments through November could widen separation by clarifying which party secures the narrow edges in these districts.
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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