[Democrats Have Gained 51 Senate Seats, Reaching Majority Threshold] According to the latest data from Decision Desk HQ, in the 2026 US midterm elections for the Senate, Democrats have won 51 seats, while Republicans have won 40. Democrats have reached the threshold of a Senate majority (51 seats). In the House of Representatives, Democrats currently hold 211 seats, and Republicans hold 119 seats, still 7 seats short of the 218-seat majority threshold.