Republicans enter the 2026 midterms defending a narrow House majority amid standard historical patterns that typically produce net losses for the president's party. Generic ballot polling shows Democrats ahead by roughly five to six points, while special election results indicate Democratic overperformance relative to 2024 baselines. Mid-decade redistricting in several states has created a modest Republican structural advantage, yet analysts project this offsets only a portion of expected Democratic gains across dozens of competitive districts rated as toss-ups or leans by outlets such as the Cook Political Report. The resulting uncertainty in final seat totals, driven by turnout variables, candidate quality, and late-cycle national conditions, keeps trader probabilities distributed across bins from below 190 through the low 220s rather than consolidating on any single outcome.