Brown University A. Alfred Taubman Center for American Politics and Policy
Historical accuracy is measured against certified results. Current-cycle records come from the canonical, deduplicated archive and do not by themselves change the sealed forecast.
- Historical polls
- 8
- Mean absolute error
- 7.92percentage points
- Historical bias
- R+0.70
- Represented cycles
- 32000–2014
- Current archive
- 0canonical records
- History span
- Oct 22, 2000through Oct 26, 2014
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 2000 · 2002 · 2014
8 eligible historical polls is a limited denominator; both MAE and bias may move materially as another cycle is added.
Current-cycle records
Archive source date 2026-09-09 · bundled copy. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.
0 shown · 0 total
No record in the currently authorized canonical archive is attached to this identity.
This is not evidence that the pollster released no 2026 polling; the source-audit gaps remain documented.
Eligible historical observations
8 shown · 8 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2014 | 2014_Gov-G_RI | Gov-G | 2014-10-26 | 500 | D+0.6 | D+4.5 | R+3.9 |
| 2014 | 2014_Gov-G_RI | Gov-G | 2014-10-16 | 1,129 | D+11.1 | D+4.5 | D+6.6 |
| 2002 | 2002_Sen-G_RI | Sen-G | 2002-10-20 | 418 | D+47.0 | D+56.9 | R+9.8 |
| 2002 | 2002_House-G_RI-1 | House-G | 2002-10-20 | 194 | D+17.0 | D+22.6 | R+5.6 |
| 2002 | 2002_Gov-G_RI | Gov-G | 2002-10-20 | 418 | D+7.0 | R+9.5 | D+16.5 |
| 2000 | 2000_Sen-G_RI | Sen-G | 2000-10-22 | 370 | R+24.0 | R+15.7 | R+8.3 |
| 2000 | 2000_Pres-G_RI | Pres-G | 2000-10-22 | 370 | D+18.0 | D+29.1 | R+11.1 |
| 2000 | 2000_House-G_RI-1 | House-G | 2000-10-22 | 179 | D+35.0 | D+33.5 | D+1.5 |
Method · historical final-three-week D/R general-election rows plus verified historical supplement; min n=5
Definition · bias_D is poll D-R margin minus actual D-R margin; positive overstates Democrats.
A missing sample, sponsor or source is labeled unavailable; it is never reconstructed.
Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.