VotePredictor
past elections

New Hampshire Senate

Jeanne Shaheen (D) vs Bryant Messner (R)

Actual result
D+15.7
Final polls said
D+15.5
4 late polls · ✓
Model predicted
D+14.3
Winner
Dem

"Final polls said" averages polls from the last ~3 weeks — the call right before the vote, and how pollsters are rated. The model's prediction is walk-forward (trained only on earlier races).

Final rankings

How everyone who called this race did, ranked — VotePredictor shown inline (★).

Pollsters — each pollster's final poll vs the result

#PollsterFinal callMissCalled
1Emerson CollegeD+15.10.6
2Saint Anselm College Survey CenterD+15.00.7
3Suffolk UniversityD+14.41.3
4American Research GroupD+17.01.3
5VotePredictorD+14.31.4
6University of Massachusetts Lowell Center for Public OpinionD+19.03.3
7University of New Hampshire Survey CenterD+11.04.7

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1CNalysisDem 99%0.000
2Cook PoliticalDem 99%0.000
3DDHQ/Decision DeskDem 99%0.000
4The EconomistDem 100%0.000
5Elections DailyDem 99%0.000
6FiveThirtyEightDem 98%0.000
7Inside ElectionsDem 99%0.000
8JHK ForecastsDem 100%0.000
9Princeton Election ConsortiumDem 98%0.000
10Race to the WHDem 100%0.000
11VotePredictorDem 99%0.000
12Sabato's Crystal BallDem 90%0.010
13RealClearPoliticsDem 75%0.062

Polls (11)

PollsterDatenPollMiss
American Research Group2020-10-27600D+17.01
University of New Hampshire Survey Center2020-10-26864D+11.05
Saint Anselm College Survey Center2020-10-251018D+15.01
University of Massachusetts Lowell Center for Public Opinion2020-10-21757D+19.03
University of New Hampshire Survey Center2020-10-11899D+15.01
Suffolk University2020-10-10500D+14.41
Saint Anselm College Survey Center2020-10-031147D+14.02
Emerson College2020-09-30700D+15.11
American Research Group2020-09-27600D+16.00
University of New Hampshire Survey Center2020-09-26972D+13.03
University of Massachusetts Lowell Center for Public Opinion2020-09-21657D+19.03