Mike Bost
IL-12What the Signal reads
Safe R
Bost is the Republican incumbent, defending a seat the Signal rates Safe R. The market has Bost at 98¢ against Fortier's 3.6¢, up 4.9¢ since August 3. Bost leads 15 to 1 in money raised.
The market
Bost · Republican contract
98.0¢
▲ 4.9¢since August 3
This contract settles on whether a Republican holds the seat, not on Mike Bost by name.
8,400 traded · 4,893 open. Prices are the yes ask; sides may not sum to 100.Checked 2:09 PM ET
Bost v Fortier
Metric by metricThe 2026 race
Illinois 12th DistrictPrior result
R+48.4
2024 general election, won by Mike Bost.
Fundraising
15 to 1
Raised 2025 to 2026, through June 30.