Senators facing the most competitive reelection fights on the initial 2026 battleground map are mostly beginning the cycle with modest war chests that are likely to grow as they transition into campaign mode this year.
The same is also true for most House members in so-called crossover districts, where voters backed the opposite party’s presidential nominee, new federal filings show.
Meanwhile, some red-state Republican senators who could be vulnerable in primaries closed December with millions on hand, which could act as a deterrent to potential challengers.