Incumbent Republican Mike Ezell secured renomination with 84 percent in the March 2026 primary, facing Democrat Jeffrey Hulum and an independent in the November general election. Mississippi’s 4th district carries a Cook Partisan Voter Index of R+21, delivered roughly 71 percent for the Republican presidential candidate in the prior cycle, and receives Solid or Safe Republican ratings from nonpartisan analysts. These structural advantages, combined with limited Democratic fundraising and no competitive primary challenge on that side, underpin trader consensus around a 97 percent Republican win probability. A late-breaking scandal, health issue, or unusually strong national Democratic turnout could narrow the margin, though such shifts remain low-probability given the district’s consistent partisan lean.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMS-04 House Election Winner
$39,877 Vol.
$39,877 Vol.
Republican Party
97%
Democratic Party
3%
$39,877 Vol.
$39,877 Vol.
Republican Party
97%
Democratic Party
3%
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Market Opened: Jan 28, 2026, 11:10 AM ET
Resolver
0x2F5e3684c...A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Resolver
0x2F5e3684c...Incumbent Republican Mike Ezell secured renomination with 84 percent in the March 2026 primary, facing Democrat Jeffrey Hulum and an independent in the November general election. Mississippi’s 4th district carries a Cook Partisan Voter Index of R+21, delivered roughly 71 percent for the Republican presidential candidate in the prior cycle, and receives Solid or Safe Republican ratings from nonpartisan analysts. These structural advantages, combined with limited Democratic fundraising and no competitive primary challenge on that side, underpin trader consensus around a 97 percent Republican win probability. A late-breaking scandal, health issue, or unusually strong national Democratic turnout could narrow the margin, though such shifts remain low-probability given the district’s consistent partisan lean.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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