The generic congressional ballot stands at D+5.5 as of early April 2026, per Nate Silver's Silver Bulletin aggregate 1. The swing from R+3.3 in January 2025 represents an 8.8-point shift in 15 months, among the largest recorded in postwar midterm cycles.
Brookings Institution analysis maps a D+5.5 generic ballot to approximately 12 to 20 Republican seat losses based on historical averages 2. Republicans' five-seat majority (220 to 215) sits well within that range. Across 22 postwar midterm elections, the president's party has lost an average of 28 House seats. Every president with approval below 50% has seen his party lose seats.