Republican Congressman Mike Bost has successfully retained his seat in Illinois’ 12th Congressional District, defeating Democrat Julie Fortier with a significant lead. With 98% of votes tallied, Bost garnered 194,651 votes, accounting for 69.7%, while Fortier received 84,768 votes.
The Associated Press announced Bost’s victory 75 minutes after the polls closed. Covering parts of over three dozen counties, Illinois’ 12th Congressional District saw Bost outperform Fortier largely.
The results by county are available for further analysis. The leader tab highlights the top candidate in each county. The all candidates tab provides a detailed breakdown of votes by county.
The 2026 election results showcase key political contests, including the gubernatorial race between Bill Foster and Jeff Walter in Illinois’ 11th Congressional District.
For comprehensive insights into how each county voted, review the available election data tabs.

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