13 final polls from 2012 to 2020 (average error 5.5 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 2.2 points more Democratic than other polls of the same races (raw gap D+4, adjusted for its 5 polls); spread 0.7× what its sample sizes predict.
| Date | Poll | Result | vs. other polls |
|---|---|---|---|
| 09-22 | Michigan Senate | El-Sayed 48, Rogers 44 | D+1.1 |
| 08-10 | Michigan Senate | El-Sayed 50, Rogers 44 | D+7.8 |
| 08-09 | Texas Governor | Hinojosa 48, Abbott 49 | D+3 |
| 07-13 | Kansas Senate | Hamilton 43, Marshall 47 | D+4 |
| 02-03 | Texas Governor | Hinojosa 43, Abbott 46 | D+4.3 |
States polled: Kansas, Michigan, Texas.
Open GBAO in the interactive Trust Index All pollster ratings
GBAO has 13 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 5.5 points.
Historically, GBAO's misses leaned D+3.3 on average. In 2026 its polls have been 2.2 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 Michigan Senate, Texas Governor, Kansas 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.