Incumbent Republican Jim Baird secured the nomination for Indiana's 4th congressional district after defeating challengers in the May 2026 primary, while Democrat Drew Cox emerged from a crowded field as the opposing nominee. The district, encompassing west-central Indiana including Lafayette and western Indianapolis suburbs, has consistently favored Republican candidates in recent cycles, with Baird previously winning reelection by double-digit margins. Forecasters rate the seat as solid or safe Republican, aligning with trader consensus that assigns the party a dominant probability ahead of the November general election. Factors supporting this positioning include the district's voter composition, fundraising patterns, and lack of competitive indicators. Potential shifts could arise from significant national political changes, unusually high Democratic turnout, or unforeseen candidate developments before Election Day.
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
$10,237 Vol.
$10,237 Vol.
Republican Party
93%
Democratic Party
7%
$10,237 Vol.
$10,237 Vol.
Republican Party
93%
Democratic Party
7%
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 secured the nomination for Indiana's 4th congressional district after defeating challengers in the May 2026 primary, while Democrat Drew Cox emerged from a crowded field as the opposing nominee. The district, encompassing west-central Indiana including Lafayette and western Indianapolis suburbs, has consistently favored Republican candidates in recent cycles, with Baird previously winning reelection by double-digit margins. Forecasters rate the seat as solid or safe Republican, aligning with trader consensus that assigns the party a dominant probability ahead of the November general election. Factors supporting this positioning include the district's voter composition, fundraising patterns, and lack of competitive indicators. Potential shifts could arise from significant national political changes, unusually high Democratic turnout, or unforeseen candidate developments before Election Day.
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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