efficient
efficient has 1 poll in our database and is rated on 1 past poll scored against results (2020).
Rated polls
12020
Average miss
1.9All pollsters: 6.8
Lean
0Against other polls of the same races
Picked winner
100%Of rated polls
Last poll
Oct 14, 20202020 Pennsylvania's 8th congressional district election (2020)
Every rated poll against the result
Each dot is one poll from the last three weeks of a race: how far its margin landed from the result. Above the line it overstated Democrats; below, Republicans. Bars show each cycle’s average lean.
- Poll
- Cycle average
1 rated polls; misses beyond 10 points are drawn at the edge. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET
By type of race
| Race type | Rated polls | Avg. miss | All pollsters | Lean | Picked winner |
|---|---|---|---|---|---|
| House | 1 | 1.9 | 6.8 | D+1.9 | 100% |
Avg. miss: green where it beats all pollsters’ average for that type. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET
Among all pollsters
Average miss of every rated pollster, in points. efficient is marked; darker bars are pollsters with a smaller miss.
Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET
Recent polls
All 1 in the database| Dates | Question | Sample | Result | Margin | vs result | Source |
|---|---|---|---|---|---|---|
| Oct 13–14, 2020 | 2020 Pennsylvania's 8th congressional district election (2020) for Bognet's campaign | 615 LV | Cartwright 48 · Bognet 43 | D+5 | — | Release |
Latest poll ended Oct 14, 2020. Source: each poll’s own release, via the 99chambers polls database
Who it polls for
Sponsors of its polls since 2020, by share of polls.
100% of its polls were paid for by candidates or party committees.
Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET