Strong Democratic leads in national generic ballot polling, averaging six to eight points, combined with the historical pattern of the president's party losing House seats in midterms, have produced trader consensus for a Democratic majority. Republicans hold a narrow edge entering the cycle and need to defend enough competitive districts to retain 218 seats, yet forecasts project Democratic net gains of roughly 20 seats. Recent ratings updates have shifted multiple Republican-held seats toward Democrats. Reversal would require correlated polling errors, unusually high Republican turnout in battleground districts, or late developments that alter the national environment before November 3.