VotePredictor
past elections

South Carolina President

Marco Rubio (D) vs Donald Trump (R)

Actual result
R+14.3
Final polls said
R+6.5
6 late polls · ✓
Model predicted
R+9.9
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
1Trafalgar GroupR+15.41.2
2Starboard CommunicationsR+11.03.3
3YouGovR+11.03.3
4VotePredictorR+9.94.4
5IpsosR+5.88.4
6Gravis MarketingR+5.09.3
7SurveyMonkeyR+4.010.3
8Winthrop University Center for Public Opinion & Policy ResearchR+4.010.3

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1Inside ElectionsRep 99%0.000
2Princeton Election ConsortiumRep 99%0.000
3Sabato's Crystal BallRep 99%0.000
4VotePredictorRep 99%0.000
5FiveThirtyEightRep 91%0.008
6Cook PoliticalRep 90%0.010
7New York TimesRep 90%0.010

Polls (10)

PollsterDatenPollMiss
Gravis Marketing2016-11-051751R+5.09
SurveyMonkey2016-11-041698R+4.010
Starboard Communications2016-10-30600R+11.03
Ipsos2016-10-30251R+5.88
SurveyMonkey2016-10-281762R+2.012
YouGov2016-10-201298R+11.03
Ipsos2016-10-10304R+7.27
Ipsos2016-09-22240R+4.610
Winthrop University Center for Public Opinion & Policy Research2016-09-22475R+4.010
Trafalgar Group2016-09-091247R+15.41