United States / 2026 Illinois gubernatorial Republican primary
Osage Research (R)
Voting intention · published 29 Jan 2026
- Country
- 🇺🇸 United States
- Election
- 2026 Illinois gubernatorial Republican primary
- Polling institute
- Osage Research (R)
- Published
- 29 Jan 2026
- Fieldwork
- 20 Jan 2026 – 23 Jan 2026
- Sample size
- 412
- Margin of error
- ±4.8 est. (Not published: estimated from sample size (95%, simple random sample))
- Methodology
- Not published
Results
Osage Research (R), 29 Jan 2026: Bailey (R) leads with 57.0%, 48.0 points ahead of Heidner (R).
- Darren Bailey (R)57.0%new
- Rick Heidner (R)9.0%new
- Ted Dabrowski (R)8.0%new
- James Mendrick (R)4.0%new
No earlier poll by this institute for this election, so no change is shown.
How to read a poll
- Sample size is how many people were asked. More people means less random error, never none.
- ±3 is the margin of error: the real figure is likely within 3 points either way of the one shown.
- Two polls can differ because they were taken on different dates, with different methods and different samples.
- est. means the institute did not publish a margin of error, so it is estimated from the sample size.
- The average smooths this out: it combines recent polls, so one unusual poll cannot swing the picture.