Pollster ratings · Head to head

ABC/Washington Post vs. Siena: which pollster is more accurate?

ABC/Washington Post comes out ahead on 5 of 6 measures in the Crosstab Trust Index, which grades pollsters on how close their final polls came to actual results from 1998 to 2022.

★ Ahead
ABC News/The Washington Post
A
Trust Score 80/100 · rank #6
 
Siena College
A-
Trust Score 67/100 · rank #17

Head to head

MeasureABC/Washington PostSiena
Trust Score80/100 ★67/100
Average error
how far final polls missed the result
3.1 pts ★5.7 pts
Versus expected
error compared with what its races predicted
1.1 better ★0.2 better
Consistency
random miss once its tilt is removed
±3 pts ★±5.1 pts
Historical bias
closer to even is better
D+1.5 ★R+3.2
Winners called67%89% ★
Track record
final polls analyzed, 1998–2022
69 polls57 polls
2026 polls213
2026 lean
versus other polls of the same races
—D+2.7

Compare them in the interactive Trust Index All pollster ratings

More comparisons: Siena College vs. YouGov · ABC News/The Washington Post vs. YouGov · Emerson College vs. Siena College · ABC News/The Washington Post vs. Emerson College · Siena College vs. University of New Hampshire Survey Center · ABC News/The Washington Post vs. University of New Hampshire Survey Center · New York Times/Siena College vs. Siena College · ABC News/The Washington Post vs. New York Times/Siena College

Frequently asked questions

Which is more accurate, ABC/Washington Post or Siena?

ABC/Washington Post has the smaller average error (3.1 pts vs. 5.7 pts). Overall, aBC/Washington Post comes out ahead on 5 of 6 measures in the Crosstab Trust Index (ABC/Washington Post: A, Trust Score 80; Siena: A-, Trust Score 67).

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.