Bennie Thompson’s decisive victory in the March 2026 Democratic primary has reinforced trader expectations that the Democratic nominee will hold Mississippi’s 2nd Congressional District in the November general election. The district’s deep Democratic lean, reflected in its consistent partisan voting index and long history of supporting the same representative since 1993, continues to anchor probabilities near 89 percent for Democrats. Ron Eller’s narrow Republican primary win sets up a general-election matchup, yet the seat’s structural advantages and Thompson’s seniority on key committees limit any realistic path for Republicans. With voting still months away, traders appear focused on the absence of major shifts in voter registration, fundraising, or turnout patterns that could alter the outcome.