VotePredictor
past elections

California Senate

Barbara Boxer (D) vs Bill Jones (R)

Actual result
D+19.9
Final polls said
D+19.8
5 late polls · ✓
Model predicted
D+19.4
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
1VotePredictorD+19.40.5
2Field Research Corp. (Field Poll)D+19.00.9
3SurveyUSAD+21.01.1
4Public Policy Institute of CaliforniaD+18.01.9
5Los Angeles TimesD+22.02.1

Polls (11)

PollsterDatenPollMiss
SurveyUSA2004-10-30767D+21.01
Field Research Corp. (Field Poll)2004-10-241086D+19.01
SurveyUSA2004-10-24743D+15.05
SurveyUSA2004-10-16697D+22.02
Los Angeles Times2004-10-16925D+22.02
Public Policy Institute of California2004-10-141170D+18.02
SurveyUSA2004-10-03741D+17.03
Field Research Corp. (Field Poll)2004-09-28570D+16.04
Los Angeles Times2004-09-19861D+18.02
Public Policy Institute of California2004-09-161170D+18.02
SurveyUSA2004-09-07586D+18.02