Columbus Dispatch
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
- 17
- Mean absolute error
- 4.20percentage points
- Historical bias
- D+1.74
- Represented cycles
- 101998–2016
- Current archive
- 0canonical records
- History span
- Oct 27, 1998through Nov 1, 2016
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 1998 · 2000 · 2002 · 2004 · 2006 · 2008 · 2010 · 2012 · 2014 · 2016
17 eligible historical polls across 10 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
17 shown · 17 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2016 | 2016_Sen-G_OH | Sen-G | 2016-11-01 | 1,151 | R+21.0 | R+20.9 | R+0.1 |
| 2016 | 2016_Pres-G_OH | Pres-G | 2016-11-01 | 1,151 | D+1.0 | R+8.1 | D+9.1 |
| 2014 | 2014_Gov-G_OH | Gov-G | 2014-10-27 | 1,009 | R+28.0 | R+30.6 | D+2.6 |
| 2012 | 2012_Sen-G_OH | Sen-G | 2012-10-29 | 1,501 | D+6.0 | D+6.0 | 0 |
| 2012 | 2012_Pres-G_OH | Pres-G | 2012-10-29 | 1,501 | D+2.0 | D+3.0 | R+1.0 |
| 2010 | 2010_Sen-G_OH | Sen-G | 2010-10-25 | 1,445 | R+16.0 | R+17.4 | D+1.4 |
| 2010 | 2010_Gov-G_OH | Gov-G | 2010-10-25 | 1,445 | R+2.0 | R+2.0 | 0 |
| 2008 | 2008_Pres-G_OH | Pres-G | 2008-10-27 | 2,164 | D+6.0 | D+4.6 | D+1.4 |
| 2006 | 2006_Sen-G_OH | Sen-G | 2006-10-29 | 1,541 | D+24.0 | D+12.3 | D+11.7 |
| 2006 | 2006_Gov-G_OH | Gov-G | 2006-10-29 | 1,541 | D+36.0 | D+23.9 | D+12.1 |
| 2004 | 2004_Sen-G_OH | Sen-G | 2004-10-25 | 2,880 | R+24.0 | R+27.7 | D+3.7 |
| 2004 | 2004_Pres-G_OH | Pres-G | 2004-10-25 | 2,880 | 0 | R+2.1 | D+2.1 |
| 2002 | 2002_Gov-G_OH | Gov-G | 2002-10-28 | 2,048 | R+18.0 | R+19.4 | D+1.4 |
| 2000 | 2000_Sen-G_OH | Sen-G | 2000-10-31 | 2,050 | R+27.0 | R+24.1 | R+2.9 |
| 2000 | 2000_Pres-G_OH | Pres-G | 2000-10-31 | 2,050 | R+10.0 | R+3.5 | R+6.5 |
| 1998 | 1998_Sen-G_OH | Sen-G | 1998-10-27 | 800 | R+2.0 | R+12.9 | D+10.9 |
| 1998 | 1998_Gov-G_OH | Gov-G | 1998-10-27 | 800 | R+1.0 | R+5.4 | D+4.4 |
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.