Illinois' 1st Congressional District, with its Cook PVI of D+18, remains a solidly Democratic stronghold, driving trader consensus to price the Democratic Party at 91.8% for the November 3 general election winner. Incumbent Jonathan Jackson secured the nomination in the March 17 Democratic primary with 100% of the vote against a write-in challenger, building on his 2024 general election win of 65.8% and fundraising edge over Republican nominee Christian Maxwell, who captured 64.6% in a low-turnout GOP primary. No major developments have emerged since the primaries to shift dynamics. Realistic challenges include a late scandal hitting Jackson, suppressed Democratic turnout, or an extraordinary national Republican wave, though district demographics pose steep barriers to a GOP upset.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIL-01 House Election Winner
IL-01 House Election Winner
$40,215 Vol.
$40,215 Vol.
Nov 3, 2026
Democratic Party
93%
Republican Party
5%
$40,215 Vol.
$40,215 Vol.
Nov 3, 2026
Democratic Party
$17,649 Vol.
93%
Republican Party
$22,566 Vol.
5%
This market will resolve according to the party of the candidate who wins the IL-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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/).Illinois' 1st Congressional District, with its Cook PVI of D+18, remains a solidly Democratic stronghold, driving trader consensus to price the Democratic Party at 91.8% for the November 3 general election winner. Incumbent Jonathan Jackson secured the nomination in the March 17 Democratic primary with 100% of the vote against a write-in challenger, building on his 2024 general election win of 65.8% and fundraising edge over Republican nominee Christian Maxwell, who captured 64.6% in a low-turnout GOP primary. No major developments have emerged since the primaries to shift dynamics. Realistic challenges include a late scandal hitting Jackson, suppressed Democratic turnout, or an extraordinary national Republican wave, though district demographics pose steep barriers to a GOP upset.
This market will resolve according to the party of the candidate who wins the IL-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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, 11:08 AM ET
Volume
$40,215End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:08 AM ETResolver
0x2F5e3684c...This market will resolve according to the party of the candidate who wins the IL-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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/).Illinois' 1st Congressional District, with its Cook PVI of D+18, remains a solidly Democratic stronghold, driving trader consensus to price the Democratic Party at 91.8% for the November 3 general election winner. Incumbent Jonathan Jackson secured the nomination in the March 17 Democratic primary with 100% of the vote against a write-in challenger, building on his 2024 general election win of 65.8% and fundraising edge over Republican nominee Christian Maxwell, who captured 64.6% in a low-turnout GOP primary. No major developments have emerged since the primaries to shift dynamics. Realistic challenges include a late scandal hitting Jackson, suppressed Democratic turnout, or an extraordinary national Republican wave, though district demographics pose steep barriers to a GOP upset.
This market will resolve according to the party of the candidate who wins the IL-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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
$40,215End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:08 AM ETResolver
0x2F5e3684c...Illinois' 1st Congressional District, with its Cook PVI of D+18, remains a solidly Democratic stronghold, driving trader consensus to price the Democratic Party at 91.8% for the November 3 general election winner. Incumbent Jonathan Jackson secured the nomination in the March 17 Democratic primary with 100% of the vote against a write-in challenger, building on his 2024 general election win of 65.8% and fundraising edge over Republican nominee Christian Maxwell, who captured 64.6% in a low-turnout GOP primary. No major developments have emerged since the primaries to shift dynamics. Realistic challenges include a late scandal hitting Jackson, suppressed Democratic turnout, or an extraordinary national Republican wave, though district demographics pose steep barriers to a GOP upset.
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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