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Race · U.S. House · Illinois · 2026

Illinois District 9 · U.S. House · 2026

Seat U.S. House, Illinois District 9

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Race header

U.S. House, Illinois District 9 · Open seat
DEMNominee
Daniel Biss
99%Hume Outlook · Hume model estimate · as of 2026-10-28
REPNominee
John Elleson
1%Hume Outlook · Hume model estimate · as of 2026-10-28
IncumbentNot available

Hume Outlook

hume-2026.10-r1 · Forecast as of Oct 28, 2026
99% Daniel Biss · DemocratChance to win, between the two named candidates
DEM Daniel Biss 99%
REP John Elleson 1%
  • Hume model estimate · built on polls, fundamentals, and markets
Latest poll Not available No public polls of this race in our data yet.
Seat lean (Hume PVI) D+20 as of cycle 2020
Prior result, this seat DEM 68.4% 2024 general · margin 36.8%

Side by side

2 candidates · 5 measures
FEC summary through 2026-10-14
MeasureDEMBissREPElleson
Total receiptsUSD, cycle to date, all authorized committees
Daniel Biss$3,446,462.65
John EllesonNot available No FEC summary is available for this candidate.
Total disbursementsUSD, cycle to date
Daniel Biss$2,837,579.86
John EllesonNot available No FEC summary is available for this candidate.
Cash on handUSD, close of the covered period
Daniel Biss$608,882.79
John EllesonNot available No FEC summary is available for this candidate.
Latest pollpercent, as stored
Daniel BissNot available No public polls of this race in our data yet.
John EllesonNot available No public polls of this race in our data yet.
Seat lean (Hume PVI)identical for every candidate
Daniel BissD+20seat-level
John EllesonD+20seat-level
Money is each candidate's FEC summary: every committee the candidate has authorized, combined, as filed through the coverage date shown.

Polling

0 listed · newest first

Not available No public polls of this race in our data yet.

    Seat lean · Hume PVI

    as of cycle 2020
    D+20
    Lean (D minus R, points)
    +19.617

    Hume PVI is Hidden Levers' own two-party presidential-lean index for the district, computed on the district's current lines, not the Cook PVI.

    Prior result, this seat

    election returns

    2024 general

    CandidatePartyVotes% of total
    Janice D. SchakowskyDEM231,72268.39%
    Seth Alan CohenREP107,10631.61%

    Total votes 338,828 · winning margin 36.78% of total (margin computed here from the cited vote counts)

    Sources: FEC filings (through Oct 14, 2026) · Prior result: MIT Election Data + Science Lab (CC0) · Hume PVI and Hume Outlook: Hidden Levers estimates.

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