VotePredictor
past elections

Iowa Governor

Tom Vilsack (D) vs Doug Gross (R)

Actual result
D+8.2
Final polls said
D+13.2
4 late polls · ✓
Model predicted
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
1Selzer & Co.D+12.03.8
2Gazette CommunicationsD+12.74.5
3SurveyUSAD+14.05.8

Polls (7)

PollsterDatenPollMiss
Selzer & Co.2002-10-31807D+12.04
Gazette Communications2002-10-291082D+12.75
SurveyUSA2002-10-28614D+14.06
SurveyUSA2002-10-21614D+14.06
SurveyUSA2002-10-07605D+4.04
SurveyUSA2002-09-24605D+4.04
Selzer & Co.2002-09-23807D+18.010