Republicans currently hold 53 Senate seats and a narrow House majority near 218-219, but face a challenging midterm environment with Democrats leading generic ballot polling by 4-7 points and President Trump’s approval ratings in the low 40s or below. This has produced trader consensus around modest Republican losses, reflected in the leading probabilities for 47-49 Senate seats paired with 193-207 House seats. The Senate map offers structural advantages for Republicans, requiring Democrats to net at least four flips across competitive races in states like Alaska, Ohio, Michigan, and Texas, while the House features fewer toss-ups and redistricting effects that could limit Democratic gains. Recent polling shifts, primary results, and special election trends have kept outcomes tightly distributed across multiple bins rather than consolidating, with separation likely hinging on late-cycle economic indicators, turnout differentials, or developments in key battlegrounds before November 3.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated47–49 and 193–207 23.6%
≤46 and ≤192 13.9%
≤46 and 193–207 13.0%
50–52 and 208–222 10.4%
$29,008 Vol.
$29,008 Vol.
Nov 3, 2026
≥53 and ≥223
4%
≥53 and 208–222
8%
≥53 and ≤207
1%
50–52 and ≥223
3%
50–52 and 208–222
10%
50–52 and 193–207
9%
50–52 and ≤192
2%
47–49 and ≥208
10%
47–49 and 193–207
24%
47–49 and ≤192
10%
≤46 and ≥208
<1%
≤46 and 193–207
13%
≤46 and ≤192
14%
47–49 and 193–207 23.6%
≤46 and ≤192 13.9%
≤46 and 193–207 13.0%
50–52 and 208–222 10.4%
$29,008 Vol.
$29,008 Vol.
Nov 3, 2026
≥53 and ≥223
$797 Vol.
4%
≥53 and 208–222
$2,883 Vol.
8%
≥53 and ≤207
$819 Vol.
1%
50–52 and ≥223
$643 Vol.
3%
50–52 and 208–222
$6,259 Vol.
10%
50–52 and 193–207
$6,340 Vol.
9%
50–52 and ≤192
$1,946 Vol.
2%
47–49 and ≥208
$1,289 Vol.
10%
47–49 and 193–207
$1,386 Vol.
24%
47–49 and ≤192
$2,361 Vol.
10%
≤46 and ≥208
$653 Vol.
<1%
≤46 and 193–207
$1,062 Vol.
13%
≤46 and ≤192
$2,569 Vol.
14%
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the combined outcome of the Republican Party’s seat count in the US House of Representatives and the US Senate as a result of the 2026 midterm elections.
The Senate seat count includes all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2026 as of October 31, 2026 will be treated as held by the party affiliation of the most recent member to hold that seat. The House seat count includes all House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2026.
For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected.
For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election.
Senate and House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with a party are included in that party’s count. If the caucus decisions of members of the Senate or House elected as independents cannot be determined on the date of the 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.Republicans currently hold 53 Senate seats and a narrow House majority near 218-219, but face a challenging midterm environment with Democrats leading generic ballot polling by 4-7 points and President Trump’s approval ratings in the low 40s or below. This has produced trader consensus around modest Republican losses, reflected in the leading probabilities for 47-49 Senate seats paired with 193-207 House seats. The Senate map offers structural advantages for Republicans, requiring Democrats to net at least four flips across competitive races in states like Alaska, Ohio, Michigan, and Texas, while the House features fewer toss-ups and redistricting effects that could limit Democratic gains. Recent polling shifts, primary results, and special election trends have kept outcomes tightly distributed across multiple bins rather than consolidating, with separation likely hinging on late-cycle economic indicators, turnout differentials, or developments in key battlegrounds before November 3.
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the combined outcome of the Republican Party’s seat count in the US House of Representatives and the US Senate as a result of the 2026 midterm elections.
The Senate seat count includes all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2026 as of October 31, 2026 will be treated as held by the party affiliation of the most recent member to hold that seat. The House seat count includes all House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2026.
For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected.
For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election.
Senate and House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with a party are included in that party’s count. If the caucus decisions of members of the Senate or House elected as independents cannot be determined on the date of the 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.
This market will resolve according to the combined outcome of the Republican Party’s seat count in the US House of Representatives and the US Senate as a result of the 2026 midterm elections.
The Senate seat count includes all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2026 as of October 31, 2026 will be treated as held by the party affiliation of the most recent member to hold that seat. The House seat count includes all House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2026.
For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected.
For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election.
Senate and House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with a party are included in that party’s count. If the caucus decisions of members of the Senate or House elected as independents cannot be determined on the date of the 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: Jun 25, 2026, 1:27 PM ET
Volume
$29,008End Date
Nov 3, 2026Market Opened
Jun 25, 2026, 1:27 PM ETResolver
0x69c47De9D...The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the combined outcome of the Republican Party’s seat count in the US House of Representatives and the US Senate as a result of the 2026 midterm elections.
The Senate seat count includes all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2026 as of October 31, 2026 will be treated as held by the party affiliation of the most recent member to hold that seat. The House seat count includes all House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2026.
For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected.
For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election.
Senate and House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with a party are included in that party’s count. If the caucus decisions of members of the Senate or House elected as independents cannot be determined on the date of the 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.Republicans currently hold 53 Senate seats and a narrow House majority near 218-219, but face a challenging midterm environment with Democrats leading generic ballot polling by 4-7 points and President Trump’s approval ratings in the low 40s or below. This has produced trader consensus around modest Republican losses, reflected in the leading probabilities for 47-49 Senate seats paired with 193-207 House seats. The Senate map offers structural advantages for Republicans, requiring Democrats to net at least four flips across competitive races in states like Alaska, Ohio, Michigan, and Texas, while the House features fewer toss-ups and redistricting effects that could limit Democratic gains. Recent polling shifts, primary results, and special election trends have kept outcomes tightly distributed across multiple bins rather than consolidating, with separation likely hinging on late-cycle economic indicators, turnout differentials, or developments in key battlegrounds before November 3.
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the combined outcome of the Republican Party’s seat count in the US House of Representatives and the US Senate as a result of the 2026 midterm elections.
The Senate seat count includes all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2026 as of October 31, 2026 will be treated as held by the party affiliation of the most recent member to hold that seat. The House seat count includes all House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2026.
For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected.
For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election.
Senate and House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with a party are included in that party’s count. If the caucus decisions of members of the Senate or House elected as independents cannot be determined on the date of the 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.
This market will resolve according to the combined outcome of the Republican Party’s seat count in the US House of Representatives and the US Senate as a result of the 2026 midterm elections.
The Senate seat count includes all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2026 as of October 31, 2026 will be treated as held by the party affiliation of the most recent member to hold that seat. The House seat count includes all House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2026.
For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected.
For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election.
Senate and House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with a party are included in that party’s count. If the caucus decisions of members of the Senate or House elected as independents cannot be determined on the date of the 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
$29,008End Date
Nov 3, 2026Market Opened
Jun 25, 2026, 1:27 PM ETResolver
0x69c47De9D...Republicans currently hold 53 Senate seats and a narrow House majority near 218-219, but face a challenging midterm environment with Democrats leading generic ballot polling by 4-7 points and President Trump’s approval ratings in the low 40s or below. This has produced trader consensus around modest Republican losses, reflected in the leading probabilities for 47-49 Senate seats paired with 193-207 House seats. The Senate map offers structural advantages for Republicans, requiring Democrats to net at least four flips across competitive races in states like Alaska, Ohio, Michigan, and Texas, while the House features fewer toss-ups and redistricting effects that could limit Democratic gains. Recent polling shifts, primary results, and special election trends have kept outcomes tightly distributed across multiple bins rather than consolidating, with separation likely hinging on late-cycle economic indicators, turnout differentials, or developments in key battlegrounds before November 3.
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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