PUBLISHED Mar. 25, 2021, at 10:00 AM

FiveThirtyEight’s Pollster Ratings

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

Read moreDownload the dataSee the latest polls

CNN/Opinion Research Corp.

B
Polls analyzed103
Races called correctly74%
Most recent cycle2016
Affiliated with professional polling organization (NCPP/AAPOR/Roper)Yes

How accurate are the polls from CNN/Opinion Research Corp.?

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

Comments