Research 2000
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
- 248
- Mean absolute error
- 5.16percentage points
- Historical bias
- D+1.43
- Represented cycles
- 92000–2010
- Current archive
- 0canonical records
- History span
- Oct 17, 2000through Jan 16, 2010
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 2000 · 2002 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010
248 eligible historical polls across 9 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
48 shown · 248 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2002 | 2002_House-G_NH-2 | House-G | 2002-10-30 | 300 | R+7.0 | R+16.0 | D+9.0 |
| 2002 | 2002_House-G_NH-1 | House-G | 2002-10-30 | 300 | R+8.0 | R+19.6 | D+11.6 |
| 2002 | 2002_House-G_CT-5 | House-G | 2002-10-30 | 600 | R+9.0 | R+11.0 | D+2.0 |
| 2002 | 2002_House-G_CT-2 | House-G | 2002-10-30 | 600 | R+9.0 | R+8.2 | R+0.8 |
| 2002 | 2002_Gov-G_NH | Gov-G | 2002-10-30 | 600 | R+14.0 | R+20.4 | D+6.5 |
| 2002 | 2002_Gov-G_CT | Gov-G | 2002-10-30 | 600 | R+14.0 | R+12.2 | R+1.8 |
| 2002 | 2002_Sen-G_IL | Sen-G | 2002-10-29 | 600 | D+17.0 | D+22.3 | R+5.3 |
| 2002 | 2002_Sen-G_IA | Sen-G | 2002-10-29 | 600 | D+9.0 | D+10.4 | R+1.4 |
| 2002 | 2002_Sen-GS_MO | Sen-G | 2002-10-29 | 600 | R+4.0 | R+1.1 | R+2.9 |
| 2002 | 2002_Gov-G_IL | Gov-G | 2002-10-29 | 600 | D+11.0 | D+7.1 | D+3.9 |
| 2002 | 2002_Gov-G_IA | Gov-G | 2002-10-29 | 600 | D+12.0 | D+8.2 | D+3.8 |
| 2002 | 2002_Sen-G_OR | Sen-G | 2002-10-28 | 802 | R+15.0 | R+16.6 | D+1.6 |
| 2002 | 2002_Gov-G_OR | Gov-G | 2002-10-28 | 802 | D+8.0 | D+2.9 | D+5.1 |
| 2002 | 2002_Gov-G_VT | Gov-G | 2002-10-24 | 600 | D+6.0 | R+2.5 | D+8.6 |
| 2002 | 2002_House-G_NJ-5 | House-G | 2002-10-22 | 600 | R+8.0 | R+21.2 | D+13.2 |
| 2002 | 2002_Gov-G_WI | Gov-G | 2002-10-21 | 600 | D+8.0 | D+3.7 | D+4.3 |
| 2002 | 2002_Gov-G_CT | Gov-G | 2002-10-16 | 600 | R+14.0 | R+12.2 | R+1.8 |
| 2002 | 2002_Sen-G_IL | Sen-G | 2002-10-15 | 600 | D+18.0 | D+22.3 | R+4.3 |
| 2002 | 2002_Sen-G_IA | Sen-G | 2002-10-15 | 600 | D+9.0 | D+10.4 | R+1.4 |
| 2002 | 2002_Sen-GS_MO | Sen-G | 2002-10-15 | 600 | R+1.0 | R+1.1 | D+0.1 |
| 2002 | 2002_Gov-G_VT | Gov-G | 2002-10-15 | 600 | D+9.0 | R+2.5 | D+11.6 |
| 2002 | 2002_Gov-G_IL | Gov-G | 2002-10-15 | 600 | D+14.0 | D+7.1 | D+6.9 |
| 2002 | 2002_Gov-G_IA | Gov-G | 2002-10-15 | 600 | D+8.0 | D+8.2 | R+0.2 |
| 2000 | 2000_Sen-G_MO | Sen-G | 2000-11-01 | 600 | D+5.0 | D+2.1 | D+2.9 |
| 2000 | 2000_Sen-G_MI | Sen-G | 2000-11-01 | 602 | D+5.0 | D+1.6 | D+3.4 |
| 2000 | 2000_Pres-G_WI | Pres-G | 2000-11-01 | 619 | D+6.0 | D+0.2 | D+5.8 |
| 2000 | 2000_Pres-G_MO | Pres-G | 2000-11-01 | 600 | 0 | R+3.3 | D+3.3 |
| 2000 | 2000_Pres-G_MI | Pres-G | 2000-11-01 | 602 | D+5.0 | D+5.1 | R+0.1 |
| 2000 | 2000_Pres-G_IL | Pres-G | 2000-11-01 | 602 | D+6.0 | D+12.0 | R+6.0 |
| 2000 | 2000_Pres-G_IA | Pres-G | 2000-11-01 | 603 | D+1.0 | D+0.3 | D+0.7 |
| 2000 | 2000_Sen-G_CA | Sen-G | 2000-10-31 | 820 | D+15.0 | D+19.3 | R+4.3 |
| 2000 | 2000_Pres-G_NH | Pres-G | 2000-10-31 | 600 | D+4.0 | R+1.3 | D+5.3 |
| 2000 | 2000_Pres-G_NC | Pres-G | 2000-10-31 | 405 | R+10.0 | R+12.8 | D+2.8 |
| 2000 | 2000_Pres-G_CA | Pres-G | 2000-10-31 | 820 | D+7.0 | D+11.8 | R+4.8 |
| 2000 | 2000_House-G_NH-2 | House-G | 2000-10-31 | 600 | R+11.0 | R+15.6 | D+4.6 |
| 2000 | 2000_Gov-G_NH | Gov-G | 2000-10-31 | 600 | D+9.0 | D+5.0 | D+4.0 |
| 2000 | 2000_Sen-G_IN | Sen-G | 2000-10-29 | 600 | R+48.0 | R+34.7 | R+13.3 |
| 2000 | 2000_House-G_IN-3 | House-G | 2000-10-29 | 401 | D+7.0 | D+4.1 | D+2.9 |
| 2000 | 2000_Gov-G_IN | Gov-G | 2000-10-29 | 600 | D+15.0 | D+14.9 | D+0.1 |
| 2000 | 2000_Sen-G_VT | Sen-G | 2000-10-24 | 400 | R+28.0 | R+40.2 | D+12.2 |
| 2000 | 2000_Sen-G_CA | Sen-G | 2000-10-24 | 822 | D+15.0 | D+19.3 | R+4.3 |
| 2000 | 2000_Pres-G_VT | Pres-G | 2000-10-24 | 400 | D+16.0 | D+9.9 | D+6.0 |
| 2000 | 2000_Pres-G_CA | Pres-G | 2000-10-24 | 822 | D+10.0 | D+11.8 | R+1.8 |
| 2000 | 2000_House-G_WA-5 | House-G | 2000-10-24 | 404 | R+9.0 | R+18.4 | D+9.4 |
| 2000 | 2000_Gov-G_VT | Gov-G | 2000-10-24 | 400 | D+14.0 | D+12.5 | D+1.5 |
| 2000 | 2000_Pres-G_NH | Pres-G | 2000-10-17 | 603 | D+3.0 | R+1.3 | D+4.3 |
| 2000 | 2000_Pres-G_IL | Pres-G | 2000-10-17 | 601 | D+7.0 | D+12.0 | R+5.0 |
| 2000 | 2000_Gov-G_NH | Gov-G | 2000-10-17 | 600 | D+8.0 | D+5.0 | D+3.0 |
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.