15 final polls from 1998 to 2010 (average error 4.6 points): too few to grade. Crosstab grades every 2026 pollster on its own results after Election Day.
Open Blum & Weprin Associates in the interactive Trust Index All pollster ratings
Blum & Weprin Associates has 15 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 4.6 points.
Historically, Blum & Weprin Associates's misses leaned R+2.6 on average. Lean describes how its numbers compare; it isn't an accusation of bias.
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.