UPDATED Mar. 13, 2023, at 3:53 PM

FiveThirtyEight’s Pollster Ratings

Based on the historical accuracy and methodology of each polling organization’s polls.

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National Research

Also known as Opinion Insight
Polls analyzed15
Races called correctly77%
Most recent cycle2021
Affiliated with AAPOR/RoperNo
Other namesOpinion Insight
What are pollster ratings?

How accurate are the polls from National Research?

Polls conducted within 21 days of an election (based on the poll’s median date) are used to determine the pollster’s grade.
How this works