The Illinois 8th congressional district’s strong Democratic lean, reflected in a Cook Partisan Voting Index around D+5 or higher and consistent historical margins, underpins trader consensus favoring the Democratic nominee at 93.5%. The seat opened after incumbent Raja Krishnamoorthi sought a U.S. Senate nomination, yet the district’s suburban and exurban composition around Chicago has produced reliable Democratic general-election results. Primaries concluded in March 2026 with Melissa Bean emerging as the leading Democratic candidate and Jennifer Davis securing the Republican nomination, allowing the general-election contest to crystallize early. Heavy Democratic fundraising advantages and minimal Republican investment have reinforced the implied probability. A late national Republican surge, significant nominee-specific scandal, or unusually low Democratic turnout could narrow the gap, though such shifts would require overcoming the district’s structural partisan baseline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIL-08 House Election Winner
IL-08 House Election Winner
$18,637 Vol.
$18,637 Vol.
Nov 3, 2026
Democratic Party
94%
Republican Party
6%
$18,637 Vol.
$18,637 Vol.
Nov 3, 2026
Democratic Party
$9,403 Vol.
94%
Republican Party
$9,234 Vol.
6%
This market will resolve according to the party of the candidate who wins the IL-08 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/).The Illinois 8th congressional district’s strong Democratic lean, reflected in a Cook Partisan Voting Index around D+5 or higher and consistent historical margins, underpins trader consensus favoring the Democratic nominee at 93.5%. The seat opened after incumbent Raja Krishnamoorthi sought a U.S. Senate nomination, yet the district’s suburban and exurban composition around Chicago has produced reliable Democratic general-election results. Primaries concluded in March 2026 with Melissa Bean emerging as the leading Democratic candidate and Jennifer Davis securing the Republican nomination, allowing the general-election contest to crystallize early. Heavy Democratic fundraising advantages and minimal Republican investment have reinforced the implied probability. A late national Republican surge, significant nominee-specific scandal, or unusually low Democratic turnout could narrow the gap, though such shifts would require overcoming the district’s structural partisan baseline.
This market will resolve according to the party of the candidate who wins the IL-08 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: Jan 28, 2026, 11:09 AM ET
Volume
$18,637End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2F5e3684c...This market will resolve according to the party of the candidate who wins the IL-08 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/).The Illinois 8th congressional district’s strong Democratic lean, reflected in a Cook Partisan Voting Index around D+5 or higher and consistent historical margins, underpins trader consensus favoring the Democratic nominee at 93.5%. The seat opened after incumbent Raja Krishnamoorthi sought a U.S. Senate nomination, yet the district’s suburban and exurban composition around Chicago has produced reliable Democratic general-election results. Primaries concluded in March 2026 with Melissa Bean emerging as the leading Democratic candidate and Jennifer Davis securing the Republican nomination, allowing the general-election contest to crystallize early. Heavy Democratic fundraising advantages and minimal Republican investment have reinforced the implied probability. A late national Republican surge, significant nominee-specific scandal, or unusually low Democratic turnout could narrow the gap, though such shifts would require overcoming the district’s structural partisan baseline.
This market will resolve according to the party of the candidate who wins the IL-08 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
$18,637End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2F5e3684c...The Illinois 8th congressional district’s strong Democratic lean, reflected in a Cook Partisan Voting Index around D+5 or higher and consistent historical margins, underpins trader consensus favoring the Democratic nominee at 93.5%. The seat opened after incumbent Raja Krishnamoorthi sought a U.S. Senate nomination, yet the district’s suburban and exurban composition around Chicago has produced reliable Democratic general-election results. Primaries concluded in March 2026 with Melissa Bean emerging as the leading Democratic candidate and Jennifer Davis securing the Republican nomination, allowing the general-election contest to crystallize early. Heavy Democratic fundraising advantages and minimal Republican investment have reinforced the implied probability. A late national Republican surge, significant nominee-specific scandal, or unusually low Democratic turnout could narrow the gap, though such shifts would require overcoming the district’s structural partisan baseline.
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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