US Midterm 2026 Polling Analysis: Democrats vs Republicans, Latest Polls and the Race for Congress - Six weeks before voters head to the polls, the national polling averages look like a straightforward story. Across survey after survey, Democrats hold a steady lead on the generic congressional ballot—ranging from four points in NBC's late-September poll to eight points in RMG's tracking. Put those numbers together, and you get a clear national preference of roughly 50 to 43 percent.
The gap between what national polls measure and what Capitol Hill will look like in January comes down to geographic concentration. A national generic ballot treats a voter in suburban Philadelphia exactly the same as a voter in rural Nebraska. The electoral system does not.