Illinois' 12th Congressional District, 2026

Incumbent running

Mike Bost (R) vs. Julie Fortier (D): Illinois' 12th District election is on Tuesday, November 3, 2026, part of the 2026 midterm elections.

Mike Bost, Republican candidate for U.S. House in Illinois
Mike Bost
Republican
Incumbent · U.S. Representative, IL-12, since 2015Voting record →
Campaign money →FEC filing ↗
JF
Julie Fortier
Democratic
FEC filing ↗
Seat held by
(R) Mike Bost, since 2015
Election day
Tuesday, Nov. 3, 2026
Term
Jan 3, 2027 – Jan 3, 2029

Who is running for Illinois' 12th Congressional District?

Mike Bost (R) vs. Julie Fortier (D)

Who holds this seat now?

(R) Mike Bost, since 2015

When is the election?

Tuesday, Nov. 3, 2026

This race is for Illinois' 12th Congressional District (IL-12, District 12). Find your district on the district map.

Candidate list: civicAPI ↗