2026 midterms · Illinois · November 3
Illinois’ 12th District race 2026
Who’s running for U.S. House in Illinois’ 12th District on November 3, 2026: Julie Fortier (D) and Mike Bost (R, incumbent). Now held by Mike Bost (R). Forecasters: Solid R (average of 4).
How to vote in Illinois: check your registration on Illinois’ election website · deadlines on Vote.gov for Illinois
Next to a Democrat in Congress, $ backing is their backing from the pro-Israel PACs we track, 2016–2026; $0 backing means none. Tap a name for each PAC by year, with FEC links.
| Race | Rating | Democrats | Republicans | Others on the ballot | Notes |
|---|---|---|---|---|---|
| Illinois 12 | Solid R Average of 4; all agree Each forecaster for Illinois 12
| Julie Fortier | Mike Bost (inc.) | No one else listed |
Help Democrats across Illinois: Illinois Democratic Party · See it on the map (Illinois)
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Questions and answers
Who is running for U.S. House in Illinois’ 12th District in 2026?
On the November 3, 2026 ballot: Julie Fortier (D) and Mike Bost (R, incumbent).
When is the 2026 election for U.S. House in Illinois’ 12th District?
Election Day is Tuesday, November 3, 2026.
Who is favored in the 2026 race for U.S. House in Illinois’ 12th District?
The nonpartisan forecasters we track rate it Solid R on average (4 forecasters; they all agree). These are their ratings, not our prediction.
How do I vote in Illinois?
Check your registration on Illinois’ election website and the registration deadlines on Vote.gov; both are linked on this page.
Where this comes from
Candidates as of October 9, 2026, from state election offices, news reports and Ballotpedia’s candidate lists; independent and minor-party candidates may not be complete. Ratings are the average of up to seven nonpartisan forecasters, read from the tables Wikipedia editors keep of them: how we average them and each forecaster’s own pages. Backing is contributions plus outside spending for a candidate by the pro-Israel PACs we track, from FEC filings (method). Results, on election night, only from AP or official sources. Found an error? Tell us.