VotePredictor
past elections

Iowa President

Hillary Rodham Clinton (D) vs Ted Cruz (R)

Actual result
R+9.4
Final polls said
R+2.5
9 late polls · ✓
Model predicted
R+6.4
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
1SurveyMonkeyR+9.00.4
2Monmouth University Polling InstituteR+8.01.4
3Selzer & Co.R+7.02.4
4VotePredictorR+6.43.0
5RABA ResearchR+3.06.4
6Emerson CollegeR+2.76.7
7Quinnipiac UniversityEVEN9.4
8IpsosD+0.29.6
9Loras College Public Opinion Survey CenterD+0.810.2
10YouGovD+3.112.5
11LucidD+4.013.4

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1VotePredictorRep 92%0.006
2Cook PoliticalRep 75%0.062
3Sabato's Crystal BallRep 75%0.062
4Princeton Election ConsortiumRep 74%0.068
5FiveThirtyEightRep 69%0.096
6New York TimesRep 62%0.144
7Inside ElectionsDem 50%0.250

Polls (17)

PollsterDatenPollMiss
SurveyMonkey2016-11-041781R+9.00
Selzer & Co.2016-11-03800R+7.02
Loras College Public Opinion Survey Center2016-11-02500D+0.810
Emerson College2016-11-02700R+2.77
RABA Research2016-11-011076R+3.06
SurveyMonkey2016-10-28984R+5.04
Ipsos2016-10-27416D+0.210
Quinnipiac University2016-10-23791EVEN9
YouGov2016-10-20972D+3.113
SurveyMonkey2016-10-121135R+5.04
Lucid2016-10-09917D+4.013
Selzer & Co.2016-10-05642R+4.05
Ipsos2016-10-03382D+0.310
Loras College Public Opinion Survey Center2016-09-21491R+0.69
Quinnipiac University2016-09-17612R+7.02
Monmouth University Polling Institute2016-09-13404R+8.01
Ipsos2016-09-12344R+10.21