FiveThirtyEight's Pollster Ratings: UPDATED MAY 19, 2020 AT 8:00 AM
Marist College (A+)
Live
Races called correctly: 84%
Bias: R+0.3
Monmouth University (A+)
Live
Races called correctly: 81%
Bias: D+1.3
ABC News/The Washington Post (A+)
Live
Races called correctly: 72%
Bias: D+0.5
Siena College/The New York Times Upshot (A+)
Live
Races called correctly: 69%
Bias: R+0.3
Selzer & Co. (A+)
Live
Races called correctly: 79%
Bias: D+0.1
Muhlenberg College (A+)
Live
Races called correctly: 84%
Bias: R+0.2
SurveyUSA (A)
IVR/online/live
Races called correctly: 89%
Bias: D+0.1
Suffolk University (A)
Live
Races called correctly 79%
Bias: D+0.6
CBS News/The New York Times (A)
Live
Races called correctly: 76%
Bias: D+0.4
Emerson College (A-)
IVR/online/text
Races called correctly: 80%
Bias: D+0.3
Siena College (A-)
Online/live
Races called correctly: 90%
Bias: R+0.7
Fox News/Beacon Research/Shaw & Co. Research (A-)
Live
Races called correctly: 71%
Bias: D+1.4
RKM Research and Communications Inc.(A-)
Live
Races called correctly: 87%
Bias: R+0.1
NBC News/The Wall Street Journal (A-)
Live
Races called correctly: 73%
Bias: D+0.6
University of Cincinnati (Ohio Poll) (A/B)
Live
Races called correctly: 94%
Bias: R+1.3
https://projects.fivethirtyeight.com/pollster-ratings/