Gravis Marketing/Kaplan Strategies
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
- 126
- Mean absolute error
- 4.57percentage points
- Historical bias
- D+1.52
- Represented cycles
- 72012–2020
- Current archive
- 0canonical records
- History span
- Oct 18, 2012through Dec 30, 2020
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Participating organizations
- Gravis Marketing · Kaplan Strategies
- Cycles represented
- 2012 · 2014 · 2015 · 2016 · 2017 · 2018 · 2020
126 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 2026-10-24. 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
50 shown · 126 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2020 | GA · Senate | Sen-G | 2020-12-30 | 1,011 | D+2.0 | D+2.1 | R+0.1 |
| 2020 | GA · Senate | Sen-G | 2020-12-30 | 1,011 | D+3.0 | D+1.2 | D+1.8 |
| 2020 | TX · Senate | Sen-G | 2020-10-28 | 670 | R+6.0 | R+9.6 | D+3.6 |
| 2020 | national · President | Pres-G | 2020-10-28 | 1,281 | D+6.0 | D+4.5 | D+1.5 |
| 2020 | TX · President | Pres-G | 2020-10-28 | 670 | R+5.0 | R+5.6 | D+0.6 |
| 2020 | OH · President | Pres-G | 2020-10-28 | 613 | R+2.0 | R+8.0 | D+6.0 |
| 2020 | NV · President | Pres-G | 2020-10-28 | 688 | D+6.0 | D+2.4 | D+3.6 |
| 2020 | NC · Senate | Sen-G | 2020-10-27 | 614 | D+2.0 | R+1.8 | D+3.8 |
| 2020 | AK · Senate | Sen-G | 2020-10-27 | 770 | R+3.0 | R+12.7 | D+9.7 |
| 2020 | AZ · Senate | Sen-G | 2020-10-27 | 704 | D+5.0 | D+2.4 | D+2.6 |
| 2020 | NC · President | Pres-G | 2020-10-27 | 614 | D+3.0 | R+1.4 | D+4.3 |
| 2020 | AZ · President | Pres-G | 2020-10-27 | 704 | D+4.0 | D+0.3 | D+3.7 |
| 2020 | AK · President | Pres-G | 2020-10-27 | 770 | R+9.0 | R+10.1 | D+1.1 |
| 2020 | AK-1 · House | House-G | 2020-10-27 | 770 | R+5.0 | R+9.2 | D+4.2 |
| 2020 | NC · Governor | Gov-G | 2020-10-27 | 614 | D+8.0 | D+4.5 | D+3.5 |
| 2020 | MN · Senate | Sen-G | 2020-10-25 | 657 | D+14.0 | D+5.2 | D+8.8 |
| 2020 | MN · President | Pres-G | 2020-10-25 | 657 | D+14.0 | D+7.1 | D+6.9 |
| 2020 | MI · Senate | Sen-G | 2020-10-24 | 679 | D+11.0 | D+1.7 | D+9.3 |
| 2020 | MI · President | Pres-G | 2020-10-24 | 679 | D+13.0 | D+2.8 | D+10.2 |
| 2020 | WI · President | Pres-G | 2020-10-23 | 677 | D+11.0 | D+0.6 | D+10.4 |
| 2020 | PA · President | Pres-G | 2020-10-23 | 602 | D+7.0 | D+1.2 | D+5.8 |
| 2018 | FL · Senate | Sen-G | 2018-10-31 | 753 | D+3.0 | R+0.1 | D+3.1 |
| 2018 | CT · Senate | Sen-G | 2018-10-31 | 681 | D+23.0 | D+20.2 | D+2.8 |
| 2018 | VT-1 · House | House-G | 2018-10-31 | 885 | D+38.0 | D+43.3 | R+5.3 |
| 2018 | VT · Governor | Gov-G | 2018-10-31 | 885 | R+10.0 | R+15.0 | D+5.0 |
| 2018 | FL · Governor | Gov-G | 2018-10-31 | 753 | D+1.0 | R+0.4 | D+1.4 |
| 2018 | CT · Governor | Gov-G | 2018-10-31 | 681 | D+9.0 | D+3.1 | D+5.8 |
| 2018 | OH · Senate | Sen-G | 2018-10-30 | 789 | D+9.0 | D+6.8 | D+2.1 |
| 2018 | MI · Senate | Sen-G | 2018-10-30 | 764 | D+13.0 | D+6.5 | D+6.5 |
| 2018 | OH · Governor | Gov-G | 2018-10-30 | 789 | D+5.0 | R+3.7 | D+8.7 |
| 2018 | AZ · Senate | Sen-G | 2018-10-29 | 1,165 | R+1.0 | D+2.3 | R+3.3 |
| 2018 | AZ · Governor | Gov-G | 2018-10-29 | 1,165 | R+13.0 | R+14.2 | D+1.2 |
| 2018 | CA · Governor | Gov-G | 2018-10-26 | 743 | D+20.0 | D+23.9 | R+3.9 |
| 2018 | NV · Senate | Sen-G | 2018-10-25 | 773 | D+2.0 | D+5.1 | R+3.1 |
| 2018 | MT · Senate | Sen-G | 2018-10-25 | 782 | D+3.0 | D+3.5 | R+0.6 |
| 2018 | MT-1 · House | House-G | 2018-10-25 | 782 | 0 | R+4.6 | D+4.6 |
| 2018 | NV · Governor | Gov-G | 2018-10-25 | 773 | D+2.0 | D+4.2 | R+2.2 |
| 2018 | FL · Senate | Sen-G | 2018-10-23 | 773 | D+4.0 | R+0.1 | D+4.1 |
| 2018 | FL · Governor | Gov-G | 2018-10-23 | 773 | D+5.0 | R+0.4 | D+5.4 |
| 2018 | PA-18 · House | House-G | 2018-03-03 | 911 | R+3.0 | D+0.3 | R+3.3 |
| 2017 | AL · Senate | Sen-G | 2017-12-07 | 1,254 | R+4.0 | D+1.6 | R+5.7 |
| 2017 | AL · Senate | Sen-G | 2017-12-02 | 1,276 | D+4.0 | D+1.6 | D+2.4 |
| 2017 | VA · Governor | Gov-G | 2017-11-01 | 1,143 | D+5.5 | D+8.9 | R+3.4 |
| 2017 | NJ · Governor | Gov-G | 2017-10-31 | 611 | D+14.0 | D+14.1 | R+0.1 |
| 2017 | MT-1 · House | House-G | 2017-05-22 | 818 | R+14.0 | R+5.6 | R+8.4 |
| 2016 | NV · Senate | Sen-G | 2016-11-05 | 1,158 | D+6.0 | D+2.5 | D+3.5 |
| 2016 | WI · President | Pres-G | 2016-11-05 | 1,184 | D+3.0 | R+0.8 | D+3.8 |
| 2016 | national · President | Pres-G | 2016-11-05 | 16,639 | D+4.0 | D+2.1 | D+1.9 |
| 2016 | SC · President | Pres-G | 2016-11-05 | 1,751 | R+5.0 | R+14.3 | D+9.3 |
| 2016 | PA · President | Pres-G | 2016-11-05 | 1,220 | D+6.0 | R+0.7 | D+6.7 |
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.