DeSales University Kamran Afshar Data Analytics Center
3 scored general-election polls (2018–2020) , each measured against the certified result. How to read these numbers: methodology.
Record by cycle
Every scored poll
| Date | Race | Poll Margin | Actual | Error | Called It |
|---|---|---|---|---|---|
| 2020-10-17 | PA-7 House | D+18.0 | D+3.7 | 14.3 | ✓ |
| 2020-10-07 | PA-7 House | D+18.0 | D+3.7 | 14.3 | ✓ |
| 2018-10-13 | PA-7 House | D+11.1 | D+10.0 | 1.1 | ✓ |
Margins shown as party lead (D+/R+); for non-D-vs-R matchups the margin is first-listed candidate minus second. Historical scored-poll data for cycles through 2023 from FiveThirtyEight's pollster-ratings dataset (CC-BY-4.0); 2024 scored by PollingSource. This record never changes what enters the PollingSource average.