VotePredictor
past elections

Massachusetts Senate

John Kerry (D) vs Jeffrey K. Beatty (R)

Actual result
D+33.7
Final polls said
D+28.0
3 late polls · ✓
Model predicted
D+29.6
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
1Scott Rasmussen (Rasmussen Reports)D+32.01.7
2Suffolk UniversityD+37.03.3
3VotePredictorD+29.64.1
4SurveyUSAD+24.09.7
5YouGovD+23.010.7

Polls (7)

PollsterDatenPollMiss
SurveyUSA2008-10-27658D+24.010
YouGov2008-10-25705D+23.011
Suffolk University2008-10-21400D+37.03
SurveyUSA2008-10-13624D+30.04
Scott Rasmussen (Rasmussen Reports)2008-10-13500D+32.02
Scott Rasmussen (Rasmussen Reports)2008-09-23500D+35.01
SurveyUSA2008-09-22679D+38.04