Republicans currently hold an effective House majority of roughly six seats in the 119th Congress, with 218 Republican members against 212 Democrats, one independent caucusing with the majority, and four vacancies. This cushion, combined with a limited slate of special elections scheduled before the November 2026 midterms and the low historical frequency of rapid majority reversals through such contests, underpins the 98% trader consensus against a pre-midterm loss. Special elections typically occur in safer districts and rarely produce the net partisan shifts required to erase a multi-seat edge. Realistic scenarios that could still alter the outcome include clustered vacancies in competitive districts triggering multiple Democratic gains in rapid succession, though such developments remain uncommon given current vacancy patterns and district compositions.