B/C
| Polls analyzed | 4 |
| Races called correctly | 100% |
| Most recent cycle | 2020 |
| Affiliated with professional polling organization (NCPP/AAPOR/Roper) | Yes |
How accurate are the polls from University of California, Berkeley?
Polls conducted within 21 days of an election (based on the poll’s median date) are used to determine the pollster’s grade.
2020
Key
A = Adults
RV = Registered voters
V = Voters
LV = Likely voters
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 16-21 | 5,352LV | President (CA) General election | Online | Poll Biden (D) +36.0 | Actual Biden (D) +29.2 | Difference 6.8 |
| Feb 20-25 | 3,002LV | President (CA) Democratic primary | Online | Poll Sanders (D) +25.5 | Actual Sanders (D) +8.1 | Difference 17.4 |
2018
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 19-25 | 1,339LV | Governor (CA) General election | Online | Poll Newsom (D) +18.0 | Actual Newsom (D) +23.9 | Difference 5.9 |
| Oct 19-25 | 1,339LV | Senate (CA) General election | Online | Poll Feinstein (D) +9.0 | Actual Feinstein (D) +8.3 | Difference 0.7 |
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