VotePredictor
past elections

Maryland Senate

Benjamin L. Cardin (D) vs Daniel J. Bongino (R)

Actual result
D+29.6
Final polls said
D+24.5
2 late polls · ✓
Model predicted
D+27.5
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
1ABC News/The Washington PostD+31.01.4
2Gonzales Research & Marketing Strategies Inc.D+28.01.6
3VotePredictorD+27.52.1
4OpinionWorksD+26.03.6
5YouGovD+23.06.6

Polls (6)

PollsterDatenPollMiss
YouGov2012-11-02705D+23.07
OpinionWorks2012-10-22801D+26.04
ABC News/The Washington Post2012-10-13679D+31.01
YouGov2012-10-08498D+24.06
Gonzales Research & Marketing Strategies Inc.2012-09-20813D+28.02
YouGov2012-09-11686D+18.012