VotePredictor
past elections

Colorado Senate

Dottie Lamm (D) vs Ben Nighthorse Campbell (R)

Actual result
R+27.5
Final polls said
R+26.0
4 late polls · ✓
Model predicted
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

#PollsterFinal callMissCalled
1Mason-Dixon Polling & StrategyR+26.01.5
2Ciruli AssociatesR+29.01.5
3Harris Insights & AnalyticsR+18.09.5

Polls (6)

PollsterDatenPollMiss
Mason-Dixon Polling & Strategy1998-10-27831R+26.01
Ciruli Associates1998-10-25400R+29.02
Ciruli Associates1998-10-21400R+31.04
Harris Insights & Analytics1998-10-20614R+18.09
Mason-Dixon Polling & Strategy1998-10-11804R+13.014
Ciruli Associates1998-10-09400R+21.06