{"source":"polymarket","id":"32225","ticker":"which-party-will-win-the-house-in-2026","slug":"which-party-will-win-the-house-in-2026","title":"Which party will win the House in 2026?","description":"This market will resolve according to the party that wins control of the United States House of Representatives in the 2026 United States midterm election.\n\nA party wins control of the United States House of Representatives if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the chamber will be deemed controlled by the party with which the first elected Speaker of the House of the Congress that convenes after the 2026 midterm election is affiliated.\n\nThe following rules govern the counting of seats for determining which party wins control of the chamber.\n\nAll House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress are included. Where a seat is decided by a runoff, the runoff result will determine attribution of that seat.\n\nSeats 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.\n\nHouse 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 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.\n\nThe resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/which-party-will-win-the-house-in-2026-lO2ezdY5lP2i.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/which-party-will-win-the-house-in-2026-lO2ezdY5lP2i.png","active":true,"closed":false,"start_date":"2025-07-11T19:50:44.885000Z","end_date":"2026-11-03T00:00:00Z","closed_time":null,"volume":11645650.728420004,"volume_24hr":182970.915617,"volume_24h_change":null,"normalized_vol_24hr":56.38664627075195,"normalized_volume":60.197532653808594,"liquidity":1672985.8772,"open_interest":4265357.547658999,"categories":["Politics","Elections"],"tags":[{"id":"103123","slug":"parent-for-derivative","label":"Parent For Derivative"},{"id":"165","slug":"united-states","label":"United States"},{"id":"1101","slug":"us-presidential-election","label":"US Election"},{"id":"2","slug":"politics","label":"Politics"},{"id":"102289","slug":"midterms","label":"Midterms"},{"id":"101206","slug":"world-elections","label":"World Elections"},{"id":"144","slug":"elections","label":"Elections"},{"id":"1597","slug":"global-elections","label":"Global Elections"},{"id":"102458","slug":"earn-4","label":"Earn 4%"},{"id":"104743","slug":"main-election","label":"Main Election"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Democratic Party","top_outcome_probability":0.905,"top_outcome_prob_24h_change":0.010000000000000009,"top_outcome_volume_24h_change":162207.43054300002,"updated_at":"2026-09-19T23:28:02.554034Z","fetched_at":"2026-09-19T23:28:02.554034Z","added_at":null,"url":"https://polymarket.com/event/which-party-will-win-the-house-in-2026","chart_24h":[30740.632369000003,30756.956806,29923.626805999993,28623.547618999997,27956.638529,28971.219641,192470.506502,191498.163172,189784.829842,189798.919842,189637.729842,189752.70963900004,189616.839639,191841.106299,191874.45427,191874.24316800002,192011.822258,191033.501269,196621.035726,191733.16150600003,183418.261506,183386.731506,185251.655966,185041.219477,185032.128567,183857.507467,182815.67746700003,183725.404095,184145.03227700002,184888.04227700003,182970.915617],"kind":"live","markets":[{"source":"polymarket","id":"562802","event_id":"32225","slug":"will-the-democratic-party-control-the-house-after-the-2026-midterm-elections","question":"Will the Democratic Party control the House after the 2026 Midterm elections?","group_item_title":"Democratic Party","description":"This market will resolve according to the party that wins control of the United States House of Representatives in the 2026 United States midterm election.\n\nA party wins control of the United States House of Representatives if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the chamber will be deemed controlled by the party with which the first elected Speaker of the House of the Congress that convenes after the 2026 midterm election is affiliated.\n\nThe following rules govern the counting of seats for determining which party wins control of the chamber.\n\nAll House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress are included. Where a seat is decided by a runoff, the runoff result will determine attribution of that seat.\n\nSeats 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.\n\nHouse 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 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.\n\nThe resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-the-democratic-party-control-the-senate-after-the-2026-midterm-elections-JJ9h02JGR09z.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-the-democratic-party-control-the-senate-after-the-2026-midterm-elections-JJ9h02JGR09z.png","outcomes":["Yes","No"],"outcome_prices":[0.905,0.095],"probability":0.905,"spread":0.01,"active":true,"closed":false,"start_date":"2025-07-11T19:50:44.885000Z","end_date":"2026-11-03T00:00:00Z","closed_time":null,"volume":6782073.674642004,"volume_24hr":171639.608077,"prob_24h_change":0.010000000000000009,"volume_24h_change":162207.43054300002,"normalized_vol_24hr":65.92320251464844,"normalized_volume":72.5929183959961,"liquidity":936198.9417,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-09-19T23:28:05.414967Z","fetched_at":"2026-09-19T23:28:05.414967Z","added_at":null,"url":"https://polymarket.com/event/which-party-will-win-the-house-in-2026/will-the-democratic-party-control-the-house-after-the-2026-midterm-elections","event_title":"Which party will win the House in 2026?","chart_24h":[0.895,0.895,0.895,0.895,0.895,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905,0.905]},{"source":"polymarket","id":"562803","event_id":"32225","slug":"will-the-republican-party-control-the-house-after-the-2026-midterm-elections","question":"Will the Republican Party control the House after the 2026 Midterm elections?","group_item_title":"Republican Party","description":"This market will resolve according to the party that wins control of the United States House of Representatives in the 2026 United States midterm election.\n\nA party wins control of the United States House of Representatives if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the chamber will be deemed controlled by the party with which the first elected Speaker of the House of the Congress that convenes after the 2026 midterm election is affiliated.\n\nThe following rules govern the counting of seats for determining which party wins control of the chamber.\n\nAll House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress are included. Where a seat is decided by a runoff, the runoff result will determine attribution of that seat.\n\nSeats 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.\n\nHouse 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 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.\n\nThe resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-the-republican-party-control-the-senate-after-the-2026-midterm-elections-JSsqogfn0U0u.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/will-the-republican-party-control-the-senate-after-the-2026-midterm-elections-JSsqogfn0U0u.png","outcomes":["Yes","No"],"outcome_prices":[0.105,0.895],"probability":0.105,"spread":0.01,"active":true,"closed":false,"start_date":"2025-07-11T19:50:45.943000Z","end_date":"2026-11-03T00:00:00Z","closed_time":null,"volume":4863577.053778001,"volume_24hr":11331.30754,"prob_24h_change":0.0,"volume_24h_change":-9977.147295000004,"normalized_vol_24hr":39.54610061645508,"normalized_volume":69.55630493164062,"liquidity":738137.7738,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-09-19T23:28:05.414967Z","fetched_at":"2026-09-19T23:28:05.414967Z","added_at":null,"url":"https://polymarket.com/event/which-party-will-win-the-house-in-2026/will-the-republican-party-control-the-house-after-the-2026-midterm-elections","event_title":"Which party will win the House in 2026?","chart_24h":[0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105,0.105]},{"source":"polymarket","id":"562810","event_id":"32225","slug":"will-another-party-control-the-house-after-the-2026-midterm-elections-693","question":"Will another party control the House after the 2026 Midterm elections?","group_item_title":"Other","description":"This market will resolve according to the party that controls the House of Representatives following the 2026 U.S. House elections scheduled for November 3, 2026.\n\nHouse control is defined as having more than half of the voting members of the U.S. House of Representatives.\n\nIf the outcome of this election is ambiguous given the above rules, this market will remain open until the Speaker of the House is selected following the 2026 U.S. general election, at which point it will resolve to the party the Speaker is affiliated with at the time of their election to that position. If the elected Speaker does not caucus with any listed party this market will resolve “Other”.\n\nDetermination of which party controls the House after the 2026 U.S. House 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.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/which-party-will-win-the-house-in-2026-lO2ezdY5lP2i.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/which-party-will-win-the-house-in-2026-lO2ezdY5lP2i.png","outcomes":["Yes","No"],"outcome_prices":[],"probability":null,"spread":1.0,"active":true,"closed":false,"start_date":"2025-07-11T19:50:59.710059Z","end_date":"2025-07-11T00:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Politics","Elections"],"countries":["United States"],"updated_at":"2026-07-27T17:22:03.859287Z","fetched_at":"2026-05-05T13:27:30.159207Z","added_at":null,"url":"https://polymarket.com/event/which-party-will-win-the-house-in-2026/will-another-party-control-the-house-after-the-2026-midterm-elections-693","event_title":"Which party will win the House in 2026?","chart_24h":null}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/32225","as_of":"2026-09-19T23:51:48.102494Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Which party will win the House in 2026?\" — top market at 90% probability across 3 outcomes","source_url":null}}