Don't know/Someone else 9.4% · Mike Rogers 45.8% · Abdul El-Sayed 44.4%
- Field dates
- Aug 31–Sep 3, 2026
- Sample
- 600 LV
- Sponsor / client
- Detroit News | WDIV-TV
- Partisan sponsorship
- No partisan sponsorship flag
Pollster file
Glengariff Group
Historical accuracy is measured against certified results. Current-cycle records come from the canonical, deduplicated archive and do not by themselves change the sealed forecast.
- Historical polls
- 13
- Mean absolute error
- 4.44percentage points
- Historical bias
- D+1.06
- Represented cycles
- 72010–2024
- Current archive
- 62canonical records
- History span
- Oct 26, 2010through Oct 24, 2024
Identity
Known names and relationships
- Known aliases
- Glengariff Group, Inc.
- Organization type
- Single canonical organization
- Cycles represented
- 2010 · 2012 · 2014 · 2018 · 2020 · 2022 · 2024
13 eligible historical polls across 7 represented cycles passed the published history identity checks. Historical bias is descriptive and is kept separate from sponsor or client affiliation.
Canonical 2025–2026 archive
Current-cycle records
Archive source date 2026-09-09 · bundled copy. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.
12 shown · 62 total
Don't know/Someone else 10% · John James 43% · Jocelyn Benson 47%
- Field dates
- Aug 31–Sep 3, 2026
- Sample
- 600 LV
- Sponsor / client
- Detroit News | WDIV-TV
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 10.7% · Someone else 1.6% · Mike Rogers 49% · Abdul El-Sayed 38.7%
- Field dates
- Jul 22–Jul 24, 2026
- Sample
- 600 LV
- Sponsor / client
- Business Leaders for Michigan | Michigan Education Association
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 8.9% · Someone else 1% · Mike Rogers 44.7% · Haley Stevens 45.5%
- Field dates
- Jul 22–Jul 24, 2026
- Sample
- 600 LV
- Sponsor / client
- Business Leaders for Michigan | Michigan Education Association
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 16% · Someone else 1.6% · John James 38.7% · Jocelyn Benson 43.7%
- Field dates
- Jul 22–Jul 24, 2026
- Sample
- 600 LV
- Sponsor / client
- Business Leaders for Michigan | Michigan Education Association
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 13.8% · Someone else 2.4% · Perry Johnson 40.3% · Chris Swanson 43.5%
- Field dates
- Jul 22–Jul 24, 2026
- Sample
- 600 LV
- Sponsor / client
- Business Leaders for Michigan | Michigan Education Association
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 14.6% · Someone else 2.3% · John James 39.8% · Chris Swanson 43.4%
- Field dates
- Jul 22–Jul 24, 2026
- Sample
- 600 LV
- Sponsor / client
- Business Leaders for Michigan | Michigan Education Association
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 12.9% · Someone else 1.9% · Perry Johnson 37.4% · Jocelyn Benson 47.7%
- Field dates
- Jul 22–Jul 24, 2026
- Sample
- 600 LV
- Sponsor / client
- Business Leaders for Michigan | Michigan Education Association
- Partisan sponsorship
- No partisan sponsorship flag
Primary · D primary
Benson +60Michigan · Governor
Jocelyn Benson 72% · Christopher Robert Swanson 12%
- Field dates
- Jul 11, 2026
- Sample
- 500 LV
- Sponsor / client
- Not reported in archive
- Partisan sponsorship
- No partisan sponsorship flag
Primary · D primary
Stevens +7Michigan · Senate
Abdul El-Sayed 41% · Haley Stevens 48%
- Field dates
- Jul 11, 2026
- Sample
- 500 LV
- Sponsor / client
- Not reported in archive
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 14.7% · Someone else 0% · Haley Stevens 41.5% · Mike Rogers 43.8%
- Field dates
- Apr 28–May 1, 2026
- Sample
- 600 LV
- Sponsor / client
- Detroit Regional Chamber
- Partisan sponsorship
- No partisan sponsorship flag
Don't know 15.5% · Someone else 0% · Abdul El-Sayed 39.8% · Mike Rogers 44.7%
- Field dates
- Apr 28–May 1, 2026
- Sample
- 600 LV
- Sponsor / client
- Detroit Regional Chamber
- Partisan sponsorship
- No partisan sponsorship flag
Certified-result history
Eligible historical observations
13 shown · 13 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2024 | MI · President | Pres-G | 2024-10-24 | — | D+3.0 | R+1.4 | D+4.4 |
| 2022 | 2022_Gov-G_MI | Gov-G | 2022-10-27 | 600 | D+8.6 | D+10.5 | R+1.9 |
| 2022 | 2022_House-G_MI-7 | House-G | 2022-10-19 | 400 | D+5.7 | D+5.4 | D+0.3 |
| 2020 | 2020_Sen-G_MI | Sen-G | 2020-10-24 | 600 | D+9.6 | D+1.7 | D+7.9 |
| 2020 | 2020_Pres-G_MI | Pres-G | 2020-10-24 | 600 | D+7.7 | D+2.8 | D+4.9 |
| 2018 | 2018_Sen-G_MI | Sen-G | 2018-10-26 | 600 | D+16.7 | D+6.5 | D+10.2 |
| 2018 | 2018_Gov-G_MI | Gov-G | 2018-10-26 | 600 | D+12.5 | D+9.6 | D+2.9 |
| 2014 | 2014_Sen-G_MI | Sen-G | 2014-10-23 | 600 | D+15.1 | D+13.3 | D+1.8 |
| 2014 | 2014_Gov-G_MI | Gov-G | 2014-10-23 | 600 | R+5.0 | R+4.1 | R+0.9 |
| 2012 | 2012_Sen-G_MI | Sen-G | 2012-10-28 | 600 | D+14.9 | D+20.8 | R+5.9 |
| 2012 | 2012_Pres-G_MI | Pres-G | 2012-10-28 | 600 | D+2.7 | D+9.5 | R+6.8 |
| 2012 | 2012_House-G_MI-3 | House-G | 2012-10-18 | 400 | D+1.0 | R+8.4 | D+9.4 |
| 2010 | 2010_Gov-G_MI | Gov-G | 2010-10-26 | 600 | R+18.0 | R+18.2 | D+0.2 |
Method · historical final-three-week D/R general-election rows plus verified historical supplement; min n=5
Definition · bias_D is poll D-R margin minus actual D-R margin; positive overstates Democrats.
A missing sample, sponsor or source is labeled unavailable; it is never reconstructed.
Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.