Actual result
R+21.4
Final polls said
R+17.0
1 late poll · ✓
Model predicted
R+17.2
✓
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
| # | Pollster | Final call | Miss | Called |
|---|---|---|---|---|
| 1 | VotePredictor | R+17.2 | 4.2 | ✓ |
| 2 | Impact Research | R+17.0 | 4.4 | ✓ |
Polls (1)
| Pollster | Date | n | Poll | Miss |
|---|---|---|---|---|
| Impact Research | 2008-09-09 | 500 | R+17.0 | 4 |