The Ballot Brief
2026 U.S. House

Illinois's 12th Congressional District — 2026 Candidates

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U.S. House · IL-12
Primary: Tuesday, March 17, 2026 General: Tuesday, November 3, 2026

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2026 candidates we're tracking in IL-12

Mike Bost

Mike Bost

RepublicanIncumbent

Top priorities

From the campaign site

  • Veterans' Affairs
  • Infrastructure development
  • Agriculture
About Mike Bost

Bost is a retired U.S. Marine Corps corporal, former firefighter and small-business owner who served in the Illinois House before being elected to represent Illinois' 12th District in 2014, per the campaign site. He chairs the House Veterans' Affairs Committee, per the campaign site.

Julie Fortier

Democratic

Top priorities

From the campaign site

  • Moving toward universal healthcare and protecting healthcare access.
  • Ensuring the VA is not privatized and continues to serve veterans.
  • Expanding broadband internet access to rural communities.
About Julie Fortier

Fortier is a cancer research scientist and Air Force veteran who has lived in Southern Illinois for more than 25 years, per the campaign site. She says she will bring a scientist's approach to government, emphasizing evidence and measurable results, per the campaign site.

About this race

Illinois's 12th Congressional District elects one member of the U.S. House of Representatives to a two-year term. Every House seat in the country is on the ballot in 2026. The Illinois primary is Tuesday, March 17, 2026, and the general election is Tuesday, November 3, 2026.

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