Incumbent Republican Jim Baird's decisive victory in the May 5 Republican primary, bolstered by a Trump endorsement, has solidified trader consensus at 90.5% for a GOP win in safely Republican Indiana's 4th Congressional District, rated R+15 on the Cook Partisan Voting Index. Democrat Drew Cox emerged from a crowded primary, but the district's rural conservative base and historical GOP dominance—evident in past landslide margins—leave little room for an upset absent a major scandal, Baird health issue, or overwhelming national Democratic midterm wave. The general election is November 3, with no recent polling challenging the structural Republican advantage.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIN-04 House Election Winner
IN-04 House Election Winner
Republican Party
91%
Democratic Party
9%
Republican Party
91%
Democratic Party
9%
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, 11:09 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 Jim Baird's decisive victory in the May 5 Republican primary, bolstered by a Trump endorsement, has solidified trader consensus at 90.5% for a GOP win in safely Republican Indiana's 4th Congressional District, rated R+15 on the Cook Partisan Voting Index. Democrat Drew Cox emerged from a crowded primary, but the district's rural conservative base and historical GOP dominance—evident in past landslide margins—leave little room for an upset absent a major scandal, Baird health issue, or overwhelming national Democratic midterm wave. The general election is November 3, with no recent polling challenging the structural Republican advantage.
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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