The Winston Group
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
- 11
- Mean absolute error
- 4.27percentage points
- Historical bias
- D+1.95
- Represented cycles
- 72004–2022
- Current archive
- 0canonical records
- History span
- Oct 19, 2004through Oct 18, 2022
Known names and relationships
- Known aliases
- The Winston Group (R)
- Organization type
- Single canonical organization
- Cycles represented
- 2004 · 2006 · 2008 · 2010 · 2014 · 2020 · 2022
11 eligible historical polls across 7 represented cycles passed the published history identity checks. Historical bias is descriptive and is kept separate from sponsor or client affiliation.
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
11 shown · 11 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2022 | 2022_House-G_US | House-G | 2022-10-18 | 1,300 | D+2.0 | R+2.7 | D+4.7 |
| 2020 | 2020_Pres-G_US | Pres-G | 2020-10-25 | 1,000 | D+5.0 | D+4.5 | D+0.5 |
| 2020 | 2020_House-G_US | House-G | 2020-10-25 | 1,000 | D+4.0 | D+3.0 | D+1.0 |
| 2014 | 2014_House-G_US | House-G | 2014-10-24 | 1,000 | D+1.0 | R+5.9 | D+6.9 |
| 2010 | 2010_House-G_US | House-G | 2010-10-24 | 1,000 | D+2.0 | R+6.8 | D+8.8 |
| 2010 | 2010_House-G_US | House-G | 2010-10-14 | 1,000 | D+1.0 | R+6.8 | D+7.8 |
| 2008 | 2008_House-G_US | House-G | 2008-10-23 | 1,000 | D+10.0 | D+11.1 | R+1.1 |
| 2008 | 2008_House-G_IN-3 | House-G | 2008-10-16 | 400 | R+9.0 | R+15.3 | D+6.3 |
| 2006 | 2006_House-G_US | House-G | 2006-10-31 | 1,000 | D+9.0 | D+8.2 | D+0.8 |
| 2004 | 2004_Pres-G_US | Pres-G | 2004-10-19 | 1,200 | D+1.0 | R+2.5 | D+3.5 |
| 2004 | 2004_House-G_US | House-G | 2004-10-19 | 1,200 | D+3.0 | R+2.7 | D+5.7 |
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.