Will the Democratic Party control the Senate after the 2026 Midterm elections?

Yes63%
No38%

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24h volume$5.2K
7d volume$195.4K
30d volume$793.7K
Liquidity$528.1K
Spread1%
ResolvesNov 4, 2026next month

Probability history

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Based on this market’s outcome prices, expressed as probabilities.

Resolution rules

This market will resolve according to the party that wins control of the United States Senate in the 2026 United States midterm election. A party wins control of the United States Senate if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the party that wins control of the chamber is the party that wins half of the voting seats and holds the Vice Presidency. If the outcome remains ambiguous after applying the above criteria, the chamber will be deemed controlled by the party with which the first selected President Pro Tempore of the Congress that convenes after the specified election is affiliated. The following rules govern the counting of seats for determining which party wins control of the chamber. 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 are included. Runoffs for qualifying elections will determine attribution of the relevant seat, even if they take place after November 2026. Vacant 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. 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 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 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.

The same question elsewhere

View the combined question →
Comparable, not identical. Polymarket resolves around November 4 and specifies additional seat-attribution, runoff, and Vice President-related procedures, while Limitless and Opinion resolve around November 3 and use the later Majority Leader selection if control is ambiguous. These are differing resolution rules and timing for the same underlying question.
  • Polymarketthis market

    Will the Democratic Party control the Senate after the 2026 Midterm elections?

    This market will resolve according to the party that wins control of the United States Senate in the 2026 United States midterm election. A party wins control of the United States Senate if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the party that wins control of the chamber is the party that wins half of the voting seats and holds the Vice Presidency. If the outcome remains ambiguous after applying the above criteria, the chamber will be deemed controlled by the party with which the first selected President Pro Tempore of the Congress that convenes after the specified election is affiliated. The following rules govern the counting of seats for determining which party wins control of the chamber. 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 are included. Runoffs for qualifying elections will determine attribution of the relevant seat, even if they take place after November 2026. Vacant 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. 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 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 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.

    2.9K holders · 152 comments · read Sep 26, 06:32 PM UTC

  • LimitlessOpen →

    Which party will win the Senate in 2026: Democratic Party

    This market will resolve according to the party that controls the Senate following the 2026 U.S. Senate elections scheduled for November 3, 2026. Senate control is defined as having more than half of the voting Senate members, or half of the voting Senate members and the Vice Presidency. If the outcome of this election is ambiguous given the above rules, this market will remain open until the Majority Leader of the US Senate is selected following the 2026 US general election, at which point it will resolve to the party the majority leader is affiliated with at the time of their election to that position. If the elected majority leader does not caucus with any listed party this market will resolve “Other”. Determination of which party controls the Senate after the 2026 US Senate elections will be based on a consensus of credible reporting, or if there is ambiguity, final federal and/or state election authority certification or other final official determination of the 2026 election results.

    2 holders · read Sep 30, 12:04 AM UTC

  • OpinionOpen →

    Which party will win the U.S. Senate in 2026 — Democratic Party

    This market will resolve according to the party that controls the Senate following the 2026 U.S. Senate elections scheduled for November 3, 2026. Senate control is defined as having more than half of the voting Senate members, or half of the voting Senate members and the Vice Presidency. If the outcome of this election is ambiguous given the above rules, this market will remain open until the Majority Leader of the US Senate is selected following the 2026 US general election, at which point it will resolve to the party the majority leader is affiliated with at the time of their election to that position. If the elected majority leader does not caucus with any listed party this market will resolve “Other”. Determination of which party controls the Senate after the 2026 US Senate elections will be based on a consensus of credible reporting, or if there is ambiguity, final federal and/or state election authority certification or other final official determination of the 2026 election results.

    read Sep 30, 01:51 AM UTC

Other legs of this event

MarketVenuePriceStatus
Will the Republican Party control the Senate after the 2026 Midterm elections?Polymarket63% NoOpen

Venue activity

Holders2.9K
Held value—
Trades (24h)—
Trades—
Open interest—
Comments156

Best bid 37% · best ask 38%

Top holders

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  • lomneivan107118433685650702332040991454078902188473746599223732907923581436160160612542
  • BearKingdom113287701564209339913693347405685749986285999146352375265161592243948562084773
  • 11122107118433685650702332040991454078902188473746599223732907923581436160160612542
  • Mortified-Stucco113287701564209339913693347405685749986285999146352375265161592243948562084773

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Discussion on Predxy

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156 comments

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  • Never-KYS · 4 days ago

    There is no way the Republican pull this one through with such PPI

  • Lonal · 4 days ago

    The Republicans should win, but who knows at the end of the day.

  • ItsRigg3d · 6 days ago

    Just 4 more weeks, your CCP journalist will surely pull it off

  • dPredictor · 7 days ago

    btw Katie Phang (lawyer/journalist) is winning her lawsuit and it is possible on sep 24th DOJ will be forced to release EP files with trump's name (which were withheld until now to protect him) if that happens it is game over for him, simple as that

  • MeNoDatNutReelMuni · 7 days ago

    MAGA doesn't care about that. They don't care about rapists, pedophiles, fraudsters (unless it makes democrats look bad), corruption, or even the constitution. There's a special place in hell for the GOP and their supporters

  • dPredictor · 7 days ago

    it is hilarious, polls put the race at coin flip odd, GOP whales who think chances are 30/70 are too stupid and need to be separated from their money

  • dPredictor · 7 days ago

    diesel already hit $10 in parts of the country. tired of winning yet?

  • dPredictor · 7 days ago

    ICE shot a man in the back, yoinked him out of the hospital, drove him a hundred miles, shackled, with a bullet next to his spine, then made him sleep in the floor, now he is paralyzed. Even if you are all for 'mass deportations' what they did is a crime against humanity, and will flip Texas blue for good.

  • German240706 · 8 days ago

    Lets go

  • hdtomo · 8 days ago

    The winner takes it all

  • White.Monster · 10 days ago

    More like what didn’t happen 😉

  • Pushy-Knowhow · 10 days ago

    Lol now inflation in US higher than during Biden's peaks, fuel prices will be high until Hormuz straight opens and there is no reason Iran let's that go happen, this clown installed tarrifs against western world and lost all its allies, it increased domestic price in US, and many other things happend.

  • Pushy-Knowhow · 10 days ago

    Ahaha lol yeh right there is a free education, health care, subsidized power and water bills, and interest free first home loans))

  • Pushy-Knowhow · 10 days ago

    Far rights always lose in Europe even if the come to power their approval rate drops to 0 in 6 month max... but it doesn't matter cuz far rights harw u sane as lefts or even more

  • WhaleWatch-79180 · 11 days ago

    wan123 holds $29,749.95 on Democratic Party outcome Yes. Unrealized profit: $6,733.49. They turned $23,016.46 into over $29,749.95.

  • Esteemed-Earnings · 12 days ago

    Let me guess. The threshold for meeting the label of "serious nations" is whether you like the results.

  • Norco66 · 12 days ago

    Can some of you maga morons buy gop stocks? Im tryna but at a better price

  • ItsRigg3d · 12 days ago

    Sweden is the most lunatic communist country in Europe, I'm talking about serious nations.

  • Esteemed-Earnings · 12 days ago

    The left just kicked out the incumbent right-wing coalition in Sweden this past Sunday, with Sweden's version of MAGA falling to third place.

  • ItsRigg3d · 12 days ago

    We'll see about that, ch il d mu rd er er

As of Sep 30, 01:53 AM UTC