VotePredictor
past elections

South Dakota House

Stephanie Herseth Sandlin (D) vs Bruce W. Whalen (R)

Actual result
D+39.8
Final polls said
D+40.0
1 late poll · ✓
Model predicted
D+34.6
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
1Mason-Dixon Polling & StrategyD+40.00.3
2VotePredictorD+34.65.2

Polls (1)

PollsterDatenPollMiss
Mason-Dixon Polling & Strategy2006-10-25800D+40.00