Incumbent Democrat Frank Mrvan holds a commanding position in Indiana's 1st congressional district heading into the November 3, 2026, general election, consistent with the market's implied probability. The district's Democratic lean, rooted in its northwest Indiana industrial base and voting patterns since the 1930s, combines with Mrvan's established record and primary win to anchor trader consensus. Republican challenger Barb Regnitz, a Porter County commissioner who secured her nomination and gained NRCC support plus a Trump endorsement, faces structural headwinds despite competitive fundraising and targeted GOP investment. Forecasters rate the race Likely Democratic, with no public general-election polls shifting the outlook recently. Late developments such as a major scandal, candidate health event, or unusually strong Republican turnout could narrow the gap, though the current pricing aligns with the district's fundamentals and incumbency advantage.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNEW
NEW
Nov 4, 2026
Frank Mrvan (D)
94%
Barb Regnitz (R)
4%
NEW
NEW
Nov 4, 2026
Frank Mrvan (D)
$3,113 Vol.
94%
Barb Regnitz (R)
$4,231 Vol.
4%
This market will resolve according to the party of the candidate who wins the IN-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).Incumbent Democrat Frank Mrvan holds a commanding position in Indiana's 1st congressional district heading into the November 3, 2026, general election, consistent with the market's implied probability. The district's Democratic lean, rooted in its northwest Indiana industrial base and voting patterns since the 1930s, combines with Mrvan's established record and primary win to anchor trader consensus. Republican challenger Barb Regnitz, a Porter County commissioner who secured her nomination and gained NRCC support plus a Trump endorsement, faces structural headwinds despite competitive fundraising and targeted GOP investment. Forecasters rate the race Likely Democratic, with no public general-election polls shifting the outlook recently. Late developments such as a major scandal, candidate health event, or unusually strong Republican turnout could narrow the gap, though the current pricing aligns with the district's fundamentals and incumbency advantage.
This market will resolve according to the party of the candidate who wins the IN-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).
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: Dec 16, 2025, 11:52 AM ET
Volume
$7,344End Date
Nov 5, 2026Market Opened
Dec 16, 2025, 11:52 AM ETResolver
0x2f5e3684c...This market will resolve according to the party of the candidate who wins the IN-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).Incumbent Democrat Frank Mrvan holds a commanding position in Indiana's 1st congressional district heading into the November 3, 2026, general election, consistent with the market's implied probability. The district's Democratic lean, rooted in its northwest Indiana industrial base and voting patterns since the 1930s, combines with Mrvan's established record and primary win to anchor trader consensus. Republican challenger Barb Regnitz, a Porter County commissioner who secured her nomination and gained NRCC support plus a Trump endorsement, faces structural headwinds despite competitive fundraising and targeted GOP investment. Forecasters rate the race Likely Democratic, with no public general-election polls shifting the outlook recently. Late developments such as a major scandal, candidate health event, or unusually strong Republican turnout could narrow the gap, though the current pricing aligns with the district's fundamentals and incumbency advantage.
This market will resolve according to the party of the candidate who wins the IN-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).
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/).
Volume
$7,344End Date
Nov 5, 2026Market Opened
Dec 16, 2025, 11:52 AM ETResolver
0x2f5e3684c...Incumbent Democrat Frank Mrvan holds a commanding position in Indiana's 1st congressional district heading into the November 3, 2026, general election, consistent with the market's implied probability. The district's Democratic lean, rooted in its northwest Indiana industrial base and voting patterns since the 1930s, combines with Mrvan's established record and primary win to anchor trader consensus. Republican challenger Barb Regnitz, a Porter County commissioner who secured her nomination and gained NRCC support plus a Trump endorsement, faces structural headwinds despite competitive fundraising and targeted GOP investment. Forecasters rate the race Likely Democratic, with no public general-election polls shifting the outlook recently. Late developments such as a major scandal, candidate health event, or unusually strong Republican turnout could narrow the gap, though the current pricing aligns with the district's fundamentals and incumbency advantage.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions