Wisconsin's congressional map, which gives Republicans a 6-2 edge after prior cycles, keeps the Democratic seat total tightly contested around two to four. The primary driver is the performance of the competitive Third District, where Republican incumbent Derrick Van Orden faces a Democratic challenger following the August 2026 primaries; recent candidate nominations and fundraising in that race have sustained uncertainty about a potential flip. Broader midterm dynamics, including voter turnout in swing areas and any shifts in national polling averages, could tip outcomes in either direction. Historical patterns show limited Democratic targets beyond this one seat, so late-cycle developments such as endorsements, debate performances, or economic indicators would need to produce measurable separation to move probabilities away from the current close spread between two and three seats.