VotePredictor
past elections

Montana House

John Lewis (D) vs Ryan K. Zinke (R)

Actual result
R+15.0
Final polls said
R+12.0
1 late poll · ✓
Model predicted
R+10.8
Winner
Rep

"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
1Gravis MarketingR+12.03.0
2VotePredictorR+10.84.2
3Montana State University BillingsR+7.08.0

Polls (3)

PollsterDatenPollMiss
Gravis Marketing2014-10-23604R+12.03
Montana State University Billings2014-10-08410R+7.08
Gravis Marketing2014-09-29535R+10.05