University of Wisconsin Survey Center
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
- 7
- Mean absolute error
- 8.08percentage points
- Historical bias
- D+2.21
- Represented cycles
- 52000–2008
- Current archive
- 0canonical records
- History span
- Oct 20, 2000through Oct 25, 2008
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 2000 · 2002 · 2004 · 2006 · 2008
7 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
7 shown · 7 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2008 | 2008_Pres-G_WI | Pres-G | 2008-10-25 | 359 | D+10.0 | D+13.9 | R+3.9 |
| 2006 | 2006_Sen-G_WI | Sen-G | 2006-10-22 | 266 | D+57.0 | D+37.9 | D+19.1 |
| 2006 | 2006_Gov-G_WI | Gov-G | 2006-10-22 | 266 | D+12.0 | D+7.4 | D+4.6 |
| 2004 | 2004_Sen-G_WI | Sen-G | 2004-10-25 | 545 | D+15.0 | D+11.2 | D+3.8 |
| 2004 | 2004_Pres-G_WI | Pres-G | 2004-10-25 | 545 | R+3.0 | D+0.4 | R+3.4 |
| 2002 | 2002_Gov-G_WI | Gov-G | 2002-10-27 | 501 | D+7.0 | D+3.7 | D+3.3 |
| 2000 | 2000_Sen-G_WI | Sen-G | 2000-10-20 | 587 | D+43.0 | D+24.5 | D+18.5 |
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.