Democrats hold a strong edge in 2026 House forecasts, with prediction platforms assigning them roughly 80-86% odds of securing a majority, driven by the historical midterm penalty for the president's party and consistent generic ballot leads. This positioning elevates Minority Leader Hakeem Jeffries to 77.5% in the Speaker market, as he remains the caucus's unified choice following disciplined floor coordination in the current Congress. Lower Democratic probabilities for Katherine Clark and Pete Aguilar reflect their roles in leadership succession but limited expectation of a challenge. Republican candidates including Speaker Mike Johnson, Jim Jordan, and Steve Scalise sit below 8% each, consistent with the party's slim current margin and vulnerability in competitive districts ahead of November voting. Traders monitor upcoming primaries, redistricting outcomes, and late-cycle polling shifts that could alter control.