VotePredictor
past elections

Illinois House

Melissa Bean (D) vs David McSweeney (R)

Actual result
D+6.9
Final polls said
D+9.0
3 late polls · ✓
Model predicted
D+6.4
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
1VotePredictorD+6.40.4
2RT StrategiesD+5.01.9
3Richard Day ResearchD+3.03.9
4Normington, Petts & AssociatesD+16.09.1
5Market Shares Corp.D+19.012.1
6Benenson Strategy GroupD+19.012.1

Polls (6)

PollsterDatenPollMiss
RT Strategies2006-10-251013D+5.02
Richard Day Research2006-10-21500D+3.04
Market Shares Corp.2006-10-16600D+19.012
Normington, Petts & Associates2006-10-11600D+16.09
RT Strategies2006-10-091000D+3.04
Benenson Strategy Group2006-09-08400D+19.012