Proposition 50's Democratic-drawn congressional map, approved by voters in 2025 to offset Republican redistricting elsewhere, forms the core driver of expectations by targeting five GOP-held seats and shifting several others leftward, building on the party's current 43-9 edge in California's 52 districts. June 2026 primaries clarified general-election matchups in key pickup opportunities such as the Central Valley's 22nd District and the Sacramento-area 6th, where Democrats advanced candidates positioned to capitalize on the new lines while Republicans retained some viability in competitive terrain like Valadao's district. Post-primary assessments indicate realistic net gains of three to five seats, with the midterm environment adding modest upside potential that traders price into the leading 47- and 48-seat outcomes. A handful of remaining toss-ups and candidate-specific dynamics continue to influence the distribution around these figures ahead of November.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated48 61%
47 17%
49+ 8.8%
46 4.5%
NEW
NEW
Nov 2, 2026
<43
<1%
43
1%
44
1%
45
1%
46
5%
47
17%
48
61%
49+
9%
48 61%
47 17%
49+ 8.8%
46 4.5%
NEW
NEW
Nov 2, 2026
<43
$91 Vol.
<1%
43
$91 Vol.
1%
44
$91 Vol.
1%
45
$91 Vol.
1%
46
$479 Vol.
5%
47
$3,817 Vol.
17%
48
$2,361 Vol.
61%
49+
$257 Vol.
9%
This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in California in the 2026 United States midterm election.
All California 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.Proposition 50's Democratic-drawn congressional map, approved by voters in 2025 to offset Republican redistricting elsewhere, forms the core driver of expectations by targeting five GOP-held seats and shifting several others leftward, building on the party's current 43-9 edge in California's 52 districts. June 2026 primaries clarified general-election matchups in key pickup opportunities such as the Central Valley's 22nd District and the Sacramento-area 6th, where Democrats advanced candidates positioned to capitalize on the new lines while Republicans retained some viability in competitive terrain like Valadao's district. Post-primary assessments indicate realistic net gains of three to five seats, with the midterm environment adding modest upside potential that traders price into the leading 47- and 48-seat outcomes. A handful of remaining toss-ups and candidate-specific dynamics continue to influence the distribution around these figures ahead of November.
This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in California in the 2026 United States midterm election.
All California 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.
All California 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, 10:18 AM ET
Volume
$7,279End Date
Nov 3, 2026Market Opened
Aug 11, 2026, 10:18 AM ETResolver
0x69c47De9D...This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in California in the 2026 United States midterm election.
All California 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.Proposition 50's Democratic-drawn congressional map, approved by voters in 2025 to offset Republican redistricting elsewhere, forms the core driver of expectations by targeting five GOP-held seats and shifting several others leftward, building on the party's current 43-9 edge in California's 52 districts. June 2026 primaries clarified general-election matchups in key pickup opportunities such as the Central Valley's 22nd District and the Sacramento-area 6th, where Democrats advanced candidates positioned to capitalize on the new lines while Republicans retained some viability in competitive terrain like Valadao's district. Post-primary assessments indicate realistic net gains of three to five seats, with the midterm environment adding modest upside potential that traders price into the leading 47- and 48-seat outcomes. A handful of remaining toss-ups and candidate-specific dynamics continue to influence the distribution around these figures ahead of November.
This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in California in the 2026 United States midterm election.
All California 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.
All California 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.
Volume
$7,279End Date
Nov 3, 2026Market Opened
Aug 11, 2026, 10:18 AM ETResolver
0x69c47De9D...Proposition 50's Democratic-drawn congressional map, approved by voters in 2025 to offset Republican redistricting elsewhere, forms the core driver of expectations by targeting five GOP-held seats and shifting several others leftward, building on the party's current 43-9 edge in California's 52 districts. June 2026 primaries clarified general-election matchups in key pickup opportunities such as the Central Valley's 22nd District and the Sacramento-area 6th, where Democrats advanced candidates positioned to capitalize on the new lines while Republicans retained some viability in competitive terrain like Valadao's district. Post-primary assessments indicate realistic net gains of three to five seats, with the midterm environment adding modest upside potential that traders price into the leading 47- and 48-seat outcomes. A handful of remaining toss-ups and candidate-specific dynamics continue to influence the distribution around these figures ahead of November.
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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