Primary
Democratic Primary
Held March 17, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Julie Fortier ✓ | 26,791 | 100.0% |
Republican Primary
Held March 17, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Mike Bost ✓ | 81,400 | 100.0% |
Full calendar and every race: Illinois primary guide
Race Overview
Candidates
Average is the unweighted mean of the most recent week of polls whose fieldwork ended in the last 30 days; table shows the most recent 30 days or the newest 3 polls, whichever is more. How accurate is each pollster? →
No polls in the last 90 days.
Questions About This Race
Is the 2026 IL-12 House race competitive?
No — the expert consensus rates it Safe R for Republicans.
When is the 2026 IL-12 House race decided?
Election Day is Tuesday, November 3, 2026.
How is the PollingSource average calculated?
The PollingSource average is the unweighted mean of the most recent week of scientific public polls whose fieldwork ended in the last 30 days. One poll in that week is the average. We do not exclude pollsters. The table lists the polls from that window. Full details: pollingsource.com/methodology.
Race News
No news coverage yet for this race.