Daniel Biss secured the Democratic nomination for the open IL-09 seat in the March 2026 primary after longtime incumbent Jan Schakowsky retired, advancing to face Republican John Elleson in the November general election. The northern Chicago and North Shore district carries a strong Democratic lean, with major forecasters rating the contest Solid or Safe Democratic based on historical voting patterns and partisan composition. Trader pricing across Democrat victory margins and Republican outcomes remains closely balanced, reflecting the seat's structural tilt offset by limited general-election polling data and subdued campaign activity midway through the cycle. Upcoming factors that could separate probabilities include candidate fundraising reports, national midterm dynamics, and any late-cycle shifts in voter turnout among key suburban and urban blocs.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · AggiornatoDemocrat 45-50% 37%
Democrat 60%+ 37%
Democrat 55-60% 37%
Democrat 50-55% 37%

Democrat 60%+
37%

Democrat 55-60%
37%

Democrat 50-55%
37%

Democrat 45-50%
37%

Democrat 40-45%
37%

Democrat 35-40%
37%

Democrat 30-35%
37%

Democrat 20-30%
37%

Democrat 0-20%
37%

Republican Wins
37%
Democrat 45-50% 37%
Democrat 60%+ 37%
Democrat 55-60% 37%
Democrat 50-55% 37%

Democrat 60%+
37%

Democrat 55-60%
37%

Democrat 50-55%
37%

Democrat 45-50%
37%

Democrat 40-45%
37%

Democrat 35-40%
37%

Democrat 30-35%
37%

Democrat 20-30%
37%

Democrat 0-20%
37%

Republican Wins
37%
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
For purposes of this market, candidates nominated by the Democratic & Republican Parties will represent the options for "Democrat" and "Republican," respectively. Independent candidates will not represent options for either party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 IL-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Mercato aperto: Aug 10, 2026, 11:08 AM ET
Resolver
0x69c47De9D...This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
For purposes of this market, candidates nominated by the Democratic & Republican Parties will represent the options for "Democrat" and "Republican," respectively. Independent candidates will not represent options for either party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 IL-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Resolver
0x69c47De9D...Daniel Biss secured the Democratic nomination for the open IL-09 seat in the March 2026 primary after longtime incumbent Jan Schakowsky retired, advancing to face Republican John Elleson in the November general election. The northern Chicago and North Shore district carries a strong Democratic lean, with major forecasters rating the contest Solid or Safe Democratic based on historical voting patterns and partisan composition. Trader pricing across Democrat victory margins and Republican outcomes remains closely balanced, reflecting the seat's structural tilt offset by limited general-election polling data and subdued campaign activity midway through the cycle. Upcoming factors that could separate probabilities include candidate fundraising reports, national midterm dynamics, and any late-cycle shifts in voter turnout among key suburban and urban blocs.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · Aggiornato
Fai attenzione ai link esterni.
Fai attenzione ai link esterni.
Domande frequenti