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House
IL-12 House winner?
Live
Resolves by winning party
100
Chance
Mike Bost
Republican party
95.1%
▼ 2.9
Yes
99.9¢
No
4.7¢
Mike Bost
Republican party
95.1%
▼ 2.9
Yes
99.9¢
No
4.7¢
Julie Fortier
Democratic party
4.9%
▲ 2.9
Yes
4.8¢
No
99.9¢
Julie Fortier
Democratic party
4.9%
▲ 2.9
Yes
4.8¢
No
99.9¢
IL-12 House Voter Turnout
IL-12 House Vote Percent
Republican Margin of Victory
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Illinois 12 House General Election: voter turnout
Illinois's 12th District margin of victory
IL-12 House election: Julie Fortier vote percent
IL-12 House election: Mike Bost vote percent
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General election · Nov 3, 2026
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IL-12 House winner?
Mike Bost
YES 99.9¢
NO 4.7¢
3.5% Interest
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Nov 3, 2027
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Fortier
R +30.4
margin forecast
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$16,329 vol
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Race Intel
IL-12 House Race 2026
Election
Nov 3, 2026
General election
Incumbent
Mike Bost (R)
Running for re-election
IL-12 House Candidates and Fundraising
Candidate
Raised
Small Donors
Julie Fortier
D
$145.6K
47%
$145.6K raised
·
47% small donors
Mike Bost
R
$1.6M
2.9%
$1.6M raised
·
2.9% small donors
Fundraising: FEC filings · Small-donor ≤ $200.
This does not include third party expenditures.
Past IL-12 Election Results
Past presidential elections
2024
R +43.5%
2020
R +42.8%
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