Julie Fortier vs. Mike Bost polls and 2026 forecast (Illinois's 12th District)
Our forecast gives Mike Bost (R) a >99% chance of winning (rating: Safe R), as of October 16, 2026. Expected margin: Bost +39.6; in 80% of simulations the margin falls between Bost +46.9 and Bost +32.2. Incumbent: Mike Bost (R). 2024 presidential result here: R+44.1.
House forecast · How the forecast works