VotePredictor
past elections

California Senate

Dianne Feinstein (D) vs Richard Dick Mountjoy (R)

Actual result
D+24.4
Final polls said
D+23.8
6 late polls · ✓
Model predicted
D+22.2
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+22.22.2
2Field Research Corp. (Field Poll)D+22.02.4
3SurveyUSAD+29.04.6
4Mason-Dixon Polling & StrategyD+30.05.6
5Los Angeles TimesD+18.06.4
6YouGovD+32.07.6
7Datamar AnalyticsD+16.08.4

Polls (11)

PollsterDatenPollMiss
Datamar Analytics2006-11-03692D+16.08
SurveyUSA2006-11-03553D+29.05
YouGov2006-10-311015D+32.08
Field Research Corp. (Field Poll)2006-10-27795D+22.02
SurveyUSA2006-10-24507D+26.02
YouGov2006-10-23877D+18.06
Mason-Dixon Polling & Strategy2006-09-27625D+30.06
Los Angeles Times2006-09-25989D+18.06
SurveyUSA2006-09-25445D+20.04
Field Research Corp. (Field Poll)2006-09-19679D+28.04
Datamar Analytics2006-09-141879D+10.914