MRG Research
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
- 24
- Mean absolute error
- 9.43percentage points
- Historical bias
- R+5.31
- Represented cycles
- 32010–2014
- Current archive
- 0canonical records
- History span
- Jan 15, 2010through Oct 18, 2014
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 2010 · 2012 · 2014
24 eligible historical polls across 3 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
24 shown · 24 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2014 | 2014_Sen-GS_HI | Sen-G | 2014-10-18 | 1,221 | D+26.0 | D+42.1 | R+16.1 |
| 2014 | 2014_House-G_HI-2 | House-G | 2014-10-18 | 517 | D+50.0 | D+60.1 | R+10.1 |
| 2014 | 2014_House-G_HI-1 | House-G | 2014-10-18 | 604 | 0 | D+3.9 | R+3.9 |
| 2014 | 2014_Gov-G_HI | Gov-G | 2014-10-18 | 1,221 | D+6.0 | D+12.4 | R+6.4 |
| 2012 | 2012_Sen-G_HI | Sen-G | 2012-10-26 | 1,218 | D+15.0 | D+25.2 | R+10.2 |
| 2012 | 2012_Pres-G_HI | Pres-G | 2012-10-26 | 1,218 | D+27.0 | D+42.7 | R+15.7 |
| 2012 | 2012_Pres-G_HI | Pres-G | 2012-10-25 | 1,218 | D+27.0 | D+42.7 | R+15.7 |
| 2012 | 2012_House-G_HI-2 | House-G | 2012-10-25 | 562 | D+58.0 | D+61.1 | R+3.1 |
| 2012 | 2012_House-G_HI-1 | House-G | 2012-10-25 | 657 | D+11.0 | D+9.2 | D+1.8 |
| 2010 | 2010_House-G_CT-5 | House-G | 2010-10-30 | 911 | R+8.0 | D+8.1 | R+16.1 |
| 2010 | 2010_Sen-G_CT | Sen-G | 2010-10-25 | 1,846 | D+8.0 | D+11.9 | R+3.9 |
| 2010 | 2010_House-G_WA-2 | House-G | 2010-10-25 | 423 | D+18.0 | D+2.1 | D+15.9 |
| 2010 | 2010_House-G_CT-5 | House-G | 2010-10-25 | 595 | R+1.0 | D+8.1 | R+9.1 |
| 2010 | 2010_House-G_CT-4 | House-G | 2010-10-25 | 571 | R+2.0 | D+6.1 | R+8.1 |
| 2010 | 2010_House-G_CT-3 | House-G | 2010-10-25 | 397 | D+18.1 | D+31.5 | R+13.4 |
| 2010 | 2010_House-G_CT-2 | House-G | 2010-10-25 | 388 | D+19.0 | D+21.1 | R+2.1 |
| 2010 | 2010_House-G_CT-1 | House-G | 2010-10-25 | 423 | D+18.0 | D+24.1 | R+6.0 |
| 2010 | 2010_Gov-G_CT | Gov-G | 2010-10-25 | 1,846 | 0 | D+0.6 | R+0.6 |
| 2010 | 2010_Sen-G_HI | Sen-G | 2010-10-23 | 1,181 | D+32.1 | D+53.2 | R+21.1 |
| 2010 | 2010_House-G_HI-2 | House-G | 2010-10-23 | 560 | D+23.5 | D+46.9 | R+23.4 |
| 2010 | 2010_House-G_HI-1 | House-G | 2010-10-23 | 620 | D+5.0 | D+6.5 | R+1.5 |
| 2010 | 2010_Gov-G_HI | Gov-G | 2010-10-23 | 1,181 | D+5.0 | D+17.1 | R+12.1 |
| 2010 | 2010_House-GS_HI-1 | House-G | 2010-05-07 | 1,081 | R+14.0 | R+8.7 | R+5.3 |
| 2010 | 2010_Sen-GS_MA | Sen-G | 2010-01-15 | 565 | R+9.6 | R+4.8 | R+4.8 |
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.