VotePredictor
past elections

Washington Governor

Christine Gregoire (D) vs Dino Rossi (R)

Actual result
D+6.5
Final polls said
D+5.0
6 late polls · ✓
Model predicted
D+4.7
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
1SurveyUSAD+6.00.5
2VotePredictorD+4.71.7
3University of Washington Center for Survey ResearchD+2.04.5
4Scott Rasmussen (Rasmussen Reports)D+2.04.5
5Elway ResearchD+12.05.5

Polls (12)

PollsterDatenPollMiss
SurveyUSA2008-11-01663D+6.00
University of Washington Center for Survey Research2008-10-29387D+2.04
SurveyUSA2008-10-26630D+2.04
Scott Rasmussen (Rasmussen Reports)2008-10-22500D+2.04
University of Washington Center for Survey Research2008-10-22600D+6.00
Elway Research2008-10-18405D+12.06
SurveyUSA2008-10-12544D+1.05
Scott Rasmussen (Rasmussen Reports)2008-10-02700EVEN6
SurveyUSA2008-09-21682D+2.04
Scott Rasmussen (Rasmussen Reports)2008-09-10500R+6.012
Elway Research2008-09-07225D+4.02
SurveyUSA2008-09-06658R+1.07