Democratic
Julie Fortier
Major-party general-election nominee.
VotePredictor forecast
Mike Bost favored
Safe R · predicted margin R+37.0
99%
chance to win
2024 presidential lean
R+43.02026 national environment
D+6.6District polls
noneForecast spread
±7.8 pointsMargin from the district's presidential lean on its 2026 lines, one fitted intercept and the national environment as a uniform swing; the win probability adds a decaying incumbency premium (Republican incumbent running). No district poll is blended in.
Republican
Mike Bost
Incumbent representative for IL-12. Voting record, ideology and biography →
Polls
No district-level 2026 general-election poll is currently in VotePredictor's verified polling feed for IL-12. The forecast above is the model alone: lean, incumbency and the national environment.
Other forecasts
We have not yet ingested a district rating from these independent forecasters for IL-12; links go to their current national House ratings. Missing is shown as missing—not converted into a probability.
Past results
Every election in Illinois's 12th district we hold a result for. District numbers are reused across redistricting, so older rows may cover different ground than the seat does today.
Candidate news
Mike Bost gets funding to improve big-truck rest areas in Southern Illinois
U.S. Rep. Mike Bost, a Murphysboro Republican, said U.S. Department of Transportation has freed up more than $13 million to upgrade facilities in the region
STLtoday.com · July 20, 2026
VA Benefits Bill: Republicans Demand Investigation of Major Veterans Group
Two Republican lawmakers are calling for a federal investigation into the Veterans of Foreign Wars (VFW) amid an increasingly bitter fight over one of the largest veterans' benefits packages Congress has considered in years. House Veterans' Affairs Committee …
Biztoc.com · July 14, 2026
PM Netanyahu meets with AIPAC congressional delegation
Prime Minister Benjamin Netanyahu met on Thursday with a bipartisan delegation of US Congress members organized by AIPAC at the Prime Minister's Office in Jerusalem.The Prime Minister thanked the delegation members for their consistent support for the State o…
Israelnationalnews.com · January 29, 2026
HUGE WIN FOR ELECTION INTEGRITY: Supreme Court Greenlights Lawsuits Against Late Mail-In Ballots — Opens Door to Nationwide Challenges to Democrat Schemes
The Supreme Court handed a crushing blow to the radical left’s ballot-harvesting machine on Wednesday. In a stunning 7-2 decision, the High Court ruled that Republican Congressman Mike Bost (R-IL) has the legal standing to challenge Illinois’s unconstitutiona…
Freerepublic.com · January 14, 2026
Candidate field source: 2026 House election roster ↗