{"_meta":{"attribution":"Data aggregated by pdata.world (https://pdata.world) from 8 prediction-market venues; CC BY 4.0; source data © each venue.","canonical_url":"https://pdata.world/events/kalshi/KXSENATESEATSR-29","as_of":"2026-11-04T02:06:45.389999Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"How many Senate seats will Republicans hold after the 2028 election?\" — 15 markets; highest \"At least 47\" at 81% as of 2026-11-04 UTC. https://pdata.world/events/kalshi/KXSENATESEATSR-29","source_url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29"},"source":"kalshi","id":"KXSENATESEATSR-29","ticker":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29","title":"How many Senate seats will Republicans hold after the 2028 election?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":null,"volume":3774.34,"volume_24hr":2255.9,"volume_24h_change":null,"normalized_vol_24hr":18.003280639648438,"normalized_volume":18.07620620727539,"liquidity":null,"open_interest":2516.02,"categories":["Elections"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"At least 47","top_outcome_probability":0.81,"top_outcome_prob_24h_change":0.16000000000000003,"top_outcome_volume_24h_change":-774.81,"updated_at":"2026-11-04T01:35:09.770536Z","fetched_at":"2026-11-04T01:35:09.770536Z","added_at":"2026-10-31T02:03:53.586882Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","chart_24h":[1518.44,1626.16,1883.88,1483.88,1483.88,1520.98,1320.98,1800.73,1600.73,2280.48,2285.48,2485.48,2285.48,2309.47,2364.14,2766.14,2247.7000000000003,2255.9],"kind":"live","mutually_exclusive":false,"markets_total":15,"markets":[{"source":"kalshi","id":"KXSENATESEATSR-29-47","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-47","question":"Will Republicans hold at least 47 Senate seats after the 2028 election?","group_item_title":"At least 47","description":"If the Republican Party holds at least 47 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. 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Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.36,0.64],"probability":0.36,"spread":0.56,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":807.0,"volume_24hr":807.0,"prob_24h_change":0.36,"volume_24h_change":807.0,"normalized_vol_24hr":14.605830192565918,"normalized_volume":12.96555233001709,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.54,0.54,0.54,0.53,0.53,0.53,0.53,0.53,0.36,0.36,0.36]},{"source":"kalshi","id":"KXSENATESEATSR-29-49","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-49","question":"Will Republicans hold at least 49 Senate seats after the 2028 election?","group_item_title":"At least 49","description":"If the Republican Party holds at least 49 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.35,0.65],"probability":0.35,"spread":0.73,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":526.09,"volume_24hr":471.42,"prob_24h_change":-0.09000000000000002,"volume_24h_change":416.75,"normalized_vol_24hr":12.357844352722168,"normalized_volume":11.363641738891602,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.44,0.44,0.44,0.44,0.44,0.44,0.44,0.44,0.44,0.62,0.62,0.06,0.06,0.89,0.89,0.89,0.89,0.89,0.35,0.35,0.35]},{"source":"kalshi","id":"KXSENATESEATSR-29-52","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-52","question":"Will Republicans hold at least 52 Senate seats after the 2028 election?","group_item_title":"At least 52","description":"If the Republican Party holds at least 52 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. 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Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.22,0.78],"probability":0.22,"spread":0.69,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":107.72,"volume_24hr":107.72,"prob_24h_change":0.0,"volume_24h_change":107.72,"normalized_vol_24hr":7.1647467613220215,"normalized_volume":6.360124588012695,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22,0.22]},{"source":"kalshi","id":"KXSENATESEATSR-29-50","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-50","question":"Will Republicans hold at least 50 Senate seats after the 2028 election?","group_item_title":"At least 50","description":"If the Republican Party holds at least 50 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.21,0.79],"probability":0.21,"spread":0.51,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":1508.34,"volume_24hr":844.57,"prob_24h_change":-0.55,"volume_24h_change":180.80000000000007,"normalized_vol_24hr":14.804819107055664,"normalized_volume":15.498902320861816,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.76,0.76,0.76,0.95,0.95,0.95,0.95,0.95,0.95,0.95,0.95,0.95,0.95,0.45,0.45,0.45,0.16,0.16,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.21]},{"source":"kalshi","id":"KXSENATESEATSR-29-42","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-42","question":"Will Republicans hold at least 42 Senate seats after the 2028 election?","group_item_title":"At least 42","description":"If the Republican Party holds at least 42 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.6099999999999999,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0]},{"source":"kalshi","id":"KXSENATESEATSR-29-44","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-44","question":"Will Republicans hold at least 44 Senate seats after the 2028 election?","group_item_title":"At least 44","description":"If the Republican Party holds at least 44 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.58,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0]},{"source":"kalshi","id":"KXSENATESEATSR-29-46","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-46","question":"Will Republicans hold at least 46 Senate seats after the 2028 election?","group_item_title":"At least 46","description":"If the Republican Party holds at least 46 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.66,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0]},{"source":"kalshi","id":"KXSENATESEATSR-29-51","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-51","question":"Will Republicans hold at least 51 Senate seats after the 2028 election?","group_item_title":"At least 51","description":"If the Republican Party holds at least 51 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.74,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0]},{"source":"kalshi","id":"KXSENATESEATSR-29-53","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-53","question":"Will Republicans hold at least 53 Senate seats after the 2028 election?","group_item_title":"At least 53","description":"If the Republican Party holds at least 53 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.68,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0]},{"source":"kalshi","id":"KXSENATESEATSR-29-54","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-54","question":"Will Republicans hold at least 54 Senate seats after the 2028 election?","group_item_title":"At least 54","description":"If the Republican Party holds at least 54 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.67,"active":true,"closed":false,"start_date":"2026-10-31T02:00:00Z","end_date":"2029-02-01T15:00:00Z","closed_time":"2029-02-01T15:00:00Z","result":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Elections"],"countries":["United States"],"updated_at":"2026-11-04T01:53:15.717552Z","fetched_at":"2026-11-04T01:53:15.717552Z","added_at":"2026-10-31T02:03:53.791611Z","url":"https://kalshi.com/markets/kxsenateseatsr/how-many-senate-seats-will-republicans-hold-after-the-2028-election/kxsenateseatsr-29","event_title":"How many Senate seats will Republicans hold after the 2028 election?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0]},{"source":"kalshi","id":"KXSENATESEATSR-29-55","event_id":"KXSENATESEATSR-29","slug":"KXSENATESEATSR-29-55","question":"Will Republicans hold at least 55 Senate seats after the 2028 election?","group_item_title":"At least 55","description":"If the Republican Party holds at least 55 seats in the U.S. Senate at the end of the day the new Congress first convenes after the November 7, 2028, general election, then the market resolves to Yes.\n\n---\n\nIndependent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. 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