3 final polls from 2010 to 2018 (average error 2.6 points): too few to grade. Crosstab grades every 2026 pollster on its own results after Election Day.
5 polls this cycle; its polls have been 0.9 points more Democratic than other polls of the same races (raw gap D+1.7, adjusted for its 5 polls); spread 0.89× what its sample sizes predict.
| Date | Poll | Result | vs. other polls |
|---|---|---|---|
| 08-04 | Ohio Senate | Brown 47, Husted 43 | D+3.1 |
| 08-04 | Ohio Governor | Acton 46, Ramaswamy 44 | D+0.8 |
| 06-04 | Ohio Senate | Brown 46, Husted 42 | R+4 |
| 06-04 | Ohio Governor | Acton 47, Ramaswamy 44 | D+2 |
| 06-04 | Michigan Senate | El-Sayed 46, Rogers 41 | D+6.4 |
States polled: Michigan, Ohio.
Open Tulchin Research in the interactive Trust Index All pollster ratings
Tulchin Research has 3 final polls in the 1998–2022 results data, too few to receive a grade (at least 20 graded polls are needed). Its average error was 2.6 points.
Historically, Tulchin Research's misses leaned R+2.6 on average. In 2026 its polls have been 0.9 points more Democratic than other polls of the same races. Lean describes how its numbers compare; it isn't an accusation of bias.
5 polls in Crosstab's data, including Ohio Senate, Ohio Governor, Michigan Senate.
Grades: Crosstab Trust Index, computed from FiveThirtyEight's pollster-ratings data (CC BY 4.0), 1998–2022; 2026 measures from Crosstab's polling data.
Updated 2026-10-04 · Crosstab, nonpartisan polling analysis.