{"source":"myriad","id":"120406","ticker":null,"slug":"will-democrats-sweep-the-2026-u-s-midterm-elections","title":"Will Democrats sweep the 2026 U.S. Midterm Elections?","description":"## **Market Dates:**\n\n- **Market Period:** From the publication date until November 3, 2026 at 1:00 AM UTC.\n- **Market Close:** November 3, 2026 at 1:00 AM UTC.\n- **Resolution Time:** The outcome will be determined after Market Close, once the 2026 US Midterm Elections results are officially confirmed by the market resolution sources.\n\n## **Resolution Criteria:**\n\n- Resolves to **“Yes”** if the Democratic Party controls **both the U.S. House of Representatives and the U.S. Senate** following the 2026 United States midterm elections.\n- Resolves to **“No”** if the Democratic Party does not control both chambers after the elections.\n\n## **Resolution Criteria:**\n\n- For the purposes of this market, a “Democratic sweep” means the Democratic Party controls both the U.S. House of Representatives and the U.S. Senate following the election.\n- A party will be considered to have control of the House of Representatives if it wins a majority of voting seats.\n- A party will be considered to have control of the Senate if it holds:\n  - More than half of the voting Senate seats, or\n  - Half of the seats plus the Vice President, who can cast tie-breaking votes.\n- A candidate’s party affiliation will be determined by their ballot-listed or otherwise identifiable affiliation at the time the election results are conclusively called by the resolution sources.\n- Candidates without a ballot-listed affiliation to either the Democratic or Republican Parties will be considered aligned with the party they most recently expressed intent to caucus with at the time results are finalized.\n- If control of the House remains ambiguous, the market will resolve according to the party affiliation of the first Speaker of the U.S. House selected following the 2026 midterm elections.\n- If control of the Senate remains ambiguous, the market will resolve according to the party affiliation of the first Senate Majority Leader selected following the elections.\n\n## **Resolution Details:**\n\n- This market will resolve once all the following sources have conclusively called winners determining control of the House and Senate.\n  - [Reuters](https://www.reuters.com/)\n  - [Associated Press](https://apnews.com/)\n  - [Fox News](https://www.foxnews.com/)\n- If the three sources **do not reach consensus**, this market will resolve according to the **official certification of election results**.\n\n## **Cancellation (Invalidity) Conditions**\n\n- The 2026 U.S. midterm elections are not held.\n- Determining control of Congress becomes impossible due to extraordinary circumstances preventing certification or recognition of results.\n- Myriad Markets undergoes a major technical or contractual change requiring cancellation of active markets.\n\nIf canceled, participants may claim their stakes at the market value of their open positions at the time of cancellation.","image":"https://cdn.polkamarkets.com/QmcC48r1A8Jrdn61YWYPNGwktBci4vCyyUGkMn91D83caa","icon":"https://imagedelivery.net/YN1-rdnufJQJCgu3i1CbVw/0bd92a13-587e-49ed-8ad7-b1f62811db00/public","active":true,"closed":false,"start_date":"2026-03-11T14:10:51Z","end_date":"2026-11-03T01:00:00Z","closed_time":null,"volume":3254.08424868,"volume_24hr":93.54006602,"volume_24h_change":null,"normalized_vol_24hr":27.764507293701172,"normalized_volume":20.221939086914062,"liquidity":1540.80334859,"open_interest":0.0,"categories":["Politics"],"tags":["Politics"],"synthetic":true,"is_group":false,"group_key":null,"parent_event_id":null,"probability":0.46789607,"spread":null,"top_outcome":"Will Democrats sweep the 2026 U.S. Midterm Elections?","top_outcome_probability":0.46789607,"top_outcome_prob_24h_change":0.0,"top_outcome_volume_24h_change":0.0,"updated_at":"2026-06-05T15:05:01.840354Z","fetched_at":"2026-06-05T15:05:01.840354Z","added_at":null,"url":"https://myriad.markets/markets/will-democrats-sweep-the-2026-u-s-midterm-elections","chart_24h":[0.46789607,0.46789607],"markets":[{"source":"myriad","id":"120406","event_id":"120406","slug":"will-democrats-sweep-the-2026-u-s-midterm-elections","question":"Will Democrats sweep the 2026 U.S. Midterm Elections?","group_item_title":null,"description":"## **Market Dates:**\n\n- **Market Period:** From the publication date until November 3, 2026 at 1:00 AM UTC.\n- **Market Close:** November 3, 2026 at 1:00 AM UTC.\n- **Resolution Time:** The outcome will be determined after Market Close, once the 2026 US Midterm Elections results are officially confirmed by the market resolution sources.\n\n## **Resolution Criteria:**\n\n- Resolves to **“Yes”** if the Democratic Party controls **both the U.S. House of Representatives and the U.S. Senate** following the 2026 United States midterm elections.\n- Resolves to **“No”** if the Democratic Party does not control both chambers after the elections.\n\n## **Resolution Criteria:**\n\n- For the purposes of this market, a “Democratic sweep” means the Democratic Party controls both the U.S. House of Representatives and the U.S. Senate following the election.\n- A party will be considered to have control of the House of Representatives if it wins a majority of voting seats.\n- A party will be considered to have control of the Senate if it holds:\n  - More than half of the voting Senate seats, or\n  - Half of the seats plus the Vice President, who can cast tie-breaking votes.\n- A candidate’s party affiliation will be determined by their ballot-listed or otherwise identifiable affiliation at the time the election results are conclusively called by the resolution sources.\n- Candidates without a ballot-listed affiliation to either the Democratic or Republican Parties will be considered aligned with the party they most recently expressed intent to caucus with at the time results are finalized.\n- If control of the House remains ambiguous, the market will resolve according to the party affiliation of the first Speaker of the U.S. House selected following the 2026 midterm elections.\n- If control of the Senate remains ambiguous, the market will resolve according to the party affiliation of the first Senate Majority Leader selected following the elections.\n\n## **Resolution Details:**\n\n- This market will resolve once all the following sources have conclusively called winners determining control of the House and Senate.\n  - [Reuters](https://www.reuters.com/)\n  - [Associated Press](https://apnews.com/)\n  - [Fox News](https://www.foxnews.com/)\n- If the three sources **do not reach consensus**, this market will resolve according to the **official certification of election results**.\n\n## **Cancellation (Invalidity) Conditions**\n\n- The 2026 U.S. midterm elections are not held.\n- Determining control of Congress becomes impossible due to extraordinary circumstances preventing certification or recognition of results.\n- Myriad Markets undergoes a major technical or contractual change requiring cancellation of active markets.\n\nIf canceled, participants may claim their stakes at the market value of their open positions at the time of cancellation.","image":"https://cdn.polkamarkets.com/QmcC48r1A8Jrdn61YWYPNGwktBci4vCyyUGkMn91D83caa","icon":"https://imagedelivery.net/YN1-rdnufJQJCgu3i1CbVw/0bd92a13-587e-49ed-8ad7-b1f62811db00/public","outcomes":["Yes","No"],"outcome_prices":[0.46789607,0.53210393],"probability":0.46789607,"spread":null,"active":true,"closed":false,"start_date":"2026-03-11T14:10:51Z","end_date":"2026-11-03T01:00:00Z","closed_time":null,"volume":3254.08424868,"volume_24hr":93.54006602,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":27.764507293701172,"normalized_volume":20.221939086914062,"liquidity":1540.80334859,"categories":["Politics"],"countries":["United States"],"updated_at":"2026-06-09T22:23:39.508972Z","fetched_at":"2026-06-05T15:04:59.943919Z","added_at":null,"url":"https://myriad.markets/markets/will-democrats-sweep-the-2026-u-s-midterm-elections","event_title":"Will Democrats sweep the 2026 U.S. Midterm Elections?","chart_24h":[0.46789607,0.46789607]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/myriad/120406","as_of":"2026-06-10T11:57:49.961157Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Myriad): \"Will Democrats sweep the 2026 U.S. Midterm Elections?\" — top market at 47% probability across 1 outcome","source_url":null}}