VotePredictor
past elections

California House

Jerry McNerney (D) vs David Harmer (R)

Actual result
D+1.1
Final polls said
R+1.4
3 late polls · ✗
Model predicted
R+4.1
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
1VotePredictorR+4.15.2
2SurveyUSAR+6.07.1
3Lake Research PartnersD+10.08.9
4ccAdvertisingR+8.29.3

Polls (3)

PollsterDatenPollMiss
SurveyUSA2010-10-10624R+6.07
ccAdvertising2010-09-29442R+8.29
Lake Research Partners2010-09-23500D+10.09