National Journal
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
- 12
- Mean absolute error
- 2.60percentage points
- Historical bias
- R+0.32
- Represented cycles
- 12008
- Current archive
- 0canonical records
- History span
- Oct 18, 2008through Oct 25, 2008
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 2008
All 12 eligible historical polls come from one cycle, so this record does not yet describe performance across elections.
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
12 shown · 12 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2008 | 2008_Sen-G_VA | Sen-G | 2008-10-25 | 404 | D+29.0 | D+31.3 | R+2.3 |
| 2008 | 2008_Sen-G_NC | Sen-G | 2008-10-25 | 402 | D+2.0 | D+8.5 | R+6.5 |
| 2008 | 2008_Sen-G_CO | Sen-G | 2008-10-25 | 409 | D+15.0 | D+10.3 | D+4.7 |
| 2008 | 2008_Pres-G_VA | Pres-G | 2008-10-25 | 404 | D+4.0 | D+6.3 | R+2.3 |
| 2008 | 2008_Pres-G_OH | Pres-G | 2008-10-25 | 404 | D+7.0 | D+4.6 | D+2.4 |
| 2008 | 2008_Pres-G_NC | Pres-G | 2008-10-25 | 402 | D+4.0 | D+0.3 | D+3.7 |
| 2008 | 2008_Pres-G_FL | Pres-G | 2008-10-25 | 408 | D+1.0 | D+2.8 | R+1.8 |
| 2008 | 2008_Pres-G_CO | Pres-G | 2008-10-25 | 409 | D+4.0 | D+8.9 | R+5.0 |
| 2008 | 2008_Sen-G_MN | Sen-G | 2008-10-18 | 402 | D+1.0 | D+0.0 | D+1.0 |
| 2008 | 2008_Pres-G_WI | Pres-G | 2008-10-18 | 405 | D+13.0 | D+13.9 | R+0.9 |
| 2008 | 2008_Pres-G_PA | Pres-G | 2008-10-18 | 412 | D+10.0 | D+10.3 | R+0.3 |
| 2008 | 2008_Pres-G_MN | Pres-G | 2008-10-18 | 402 | D+10.0 | D+10.3 | R+0.3 |
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.