United States / Michigan / Gubernatorial Election

2026 Michigan gubernatorial Democratic primary

Name: 2026 Michigan gubernatorial Democratic primary opinion polls
Creator: Pollytic

Election date

Government

Gretchen Whitmer

Governor of Michigan

Michigan polling average: Benson (D) 72.0% · Swanson (D) 12.0%Mean of the polls published in the 21 days to 15 Jul 2026.

Polling trend

Each point is one published poll; lines are the 21-day average of all polls. Hover or tap for institute and date.

What the polls say

Benson (D) leads the polling average in Michigan on 72.0%, 60.0 points ahead of Swanson (D) (12.0%). The biggest shift over the past month is Benson (D), up 8.0 points.

1 poll from 1 institute was published in the last 30 days of polling. The most recent is from Glengariff Group, published 15 Jul 2026. The average weighs every poll equally over 21 days; read how it works.

Latest polls

Polls with institute, dates, sample, methodology and results
Institute	Date	Fieldwork	Sample	Method	Voting intention	Source
Glengariff Group	15 Jul 2026	8 Jul 2026 – 11 Jul 2026	500	—	Benson (D) 72.0% +6.0 percentage points Swanson (D) 12.0% +4.0 percentage points	Source for Glengariff Group poll (opens in a new tab)
Mitchell Research	12 May 2026	1 May 2026 – 7 May 2026	405	—	Benson (D) 62.0% +14.0 percentage points Swanson (D) 8.0% +3.0 percentage points	Source for Mitchell Research poll (opens in a new tab)
Glengariff Group	28 Apr 2026	17 Apr 2026 – 19 Apr 2026	500	—	Benson (D) 66.0% new Swanson (D) 8.0% new	Source for Glengariff Group poll (opens in a new tab)
Emerson College	16 Apr 2026	11 Apr 2026 – 13 Apr 2026	519	—	Benson (D) 52.0% new Swanson (D) 5.0% new	Source for Emerson College poll (opens in a new tab)
Mitchell Research	21 Nov 2025*	18 Nov 2025 – 21 Nov 2025	261	—	Benson (D) 48.0% new Gilchrist (D) 12.0% new Swanson (D) 5.0% new	Source for Mitchell Research poll (opens in a new tab)

Glengariff Group
15 Jul 2026 · n=500 · Method n/a
- Benson (D)72.0%
- Swanson (D)12.0%
View original source
Mitchell Research
12 May 2026 · n=405 · Method n/a
- Benson (D)62.0%
- Swanson (D)8.0%
View original source
Glengariff Group
28 Apr 2026 · n=500 · Method n/a
- Benson (D)66.0%
- Swanson (D)8.0%
View original source
Emerson College
16 Apr 2026 · n=519 · Method n/a
- Benson (D)52.0%
- Swanson (D)5.0%
View original source
Mitchell Research
21 Nov 2025* · n=261 · Method n/a
- Benson (D)48.0%
- Gilchrist (D)12.0%
- Swanson (D)5.0%
View original source

* End of fieldwork: the source states no publication date.

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