VotePredictor
past elections

Illinois House

Cheri Bustos (D) vs Esther Joy King (R)

Actual result
D+4.0
Final polls said
D+10.6
1 late poll · ✓
Model predicted
D+10.4
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
1Tarrance GroupD+5.01.0
2Public Opinion StrategiesD+6.02.0
3VotePredictorD+10.46.4
4Victory ResearchD+10.66.5

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1The EconomistDem 99%0.000
2FiveThirtyEightDem 96%0.002
3JHK ForecastsDem 95%0.003
4VotePredictorDem 92%0.006
5Sabato's Crystal BallDem 90%0.010
6DDHQ/Decision DeskDem 79%0.044
7Cook PoliticalDem 75%0.062

Polls (3)

PollsterDatenPollMiss
Victory Research2020-10-31600D+10.67
Tarrance Group2020-10-11418D+5.01
Public Opinion Strategies2020-10-05400D+6.02