With 100 days until Nov. 3, Democrats lead some generic-ballot polls, but Republican advantages from redistricting and Senate geography keep control of Congress uncertain.
Democrats led Republicans 53% to 42% in an Emerson College generic-ballot poll released July 23, while Trump's approval stood at 39%. Other polling showed a narrower House preference margin, including a Washington Post-Ipsos survey at 48% for Democrats and 45% for Republicans, underscoring a competitive race with 100 days until Nov. 3. Republicans hold slim majorities in both chambers and retain structural advantages from redistricting and the Senate map. Eight states installed new congressional maps that could benefit Republicans, with estimates ranging from a five- to nine-seat edge to as many as 10 additional House seats. In the Senate, Republicans hold 53 seats to 45 for Democrats plus two independents who caucus with them, as both parties target races in Maine, North Carolina, Michigan, Alaska and Georgia.