VotePredictor
past elections

Illinois House

Tammy Duckworth (D) vs Joe Walsh (R)

Actual result
D+9.5
Final polls said
D+12.3
4 late polls · ✓
Model predicted
D+10.1
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
1We Ask AmericaD+10.00.5
2Market Shares Corp.D+10.00.5
3DCCC Targeting and Analytics DepartmentD+10.00.5
4VotePredictorD+10.10.6
5Public Policy PollingD+14.04.5
6Impact ResearchD+15.05.5

Polls (8)

PollsterDatenPollMiss
We Ask America2012-10-281010D+10.01
Public Policy Polling2012-10-25500D+14.05
Market Shares Corp.2012-10-22600D+10.01
Impact Research2012-10-17400D+15.06
We Ask America2012-10-091171R+1.511
DCCC Targeting and Analytics Department2012-10-04315D+10.01
We Ask America2012-10-03442D+6.03
Public Policy Polling2012-09-19508D+14.05