Marketing Resource Group (MRG)
7 scored general-election polls (2014–2020) , each measured against the certified result. How to read these numbers: methodology.
Record by cycle
| Cycle | Polls | Avg. Error | Lean | Winner Called |
|---|---|---|---|---|
| 2020 | 2 | 1.3 pts | D+1.3 | 100% |
| 2018 | 2 | 7.0 pts | D+7.0 | 100% |
| 2016 | 1 | 5.2 pts | D+5.2 | 0% |
| 2014 | 2 | 1.6 pts | R+1.6 | 100% |
Every scored poll
| Date | Race | Poll Margin | Actual | Error | Called It |
|---|---|---|---|---|---|
| 2020-09-16 | MI Senate | D+2.0 | D+1.7 | 0.3 | ✓ |
| 2020-09-16 | MI President | D+5.0 | D+2.8 | 2.2 | ✓ |
| 2018-10-16 | MI Governor | D+14.0 | D+9.6 | 4.4 | ✓ |
| 2018-10-16 | MI Senate | D+16.0 | D+6.5 | 9.5 | ✓ |
| 2016-10-18 | MI President | D+5.0 | R+0.2 | 5.2 | ✗ |
| 2014-09-30 | MI Governor | R+5.0 | R+4.1 | 0.9 | ✓ |
| 2014-09-30 | MI Senate | D+11.0 | D+13.3 | 2.3 | ✓ |
Margins shown as party lead (D+/R+); for non-D-vs-R matchups the margin is first-listed candidate minus second. Historical scored-poll data for cycles through 2023 from FiveThirtyEight's pollster-ratings dataset (CC-BY-4.0); 2024 scored by PollingSource. This record never changes what enters the PollingSource average.