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Toss-up · 2010 Senate
Iowa Senate
In the 2010 Iowa Senate race, Chuck Grassley (R) won by about 31 points.
Actual result
R+31.1
Final polls said
R+31.0
1 late poll · ✓
VotePredictor Elections predicted
—
Winner
Rep
"Final polls said" averages polls from the last ~3 weeks — the call right before the vote, and how pollsters are rated. VotePredictor Elections' prediction is walk-forward (trained only on earlier races).
Final rankings
How everyone who called this race did, ranked — VotePredictor Elections shown inline (★).
Pollsters — each pollster's final poll vs the result
| # | Pollster | Final call | Miss | Called |
|---|---|---|---|---|
| 1 | Selzer & Co. | R+31.0 | 0.1 | ✓ |
| 2 | Scott Rasmussen (Rasmussen Reports) | R+18.0 | 13.1 | ✓ |
The polls behind it
3 polls · newest firstPollsterDateSampleMiss
Selzer & Co.2010-10-280
Scott Rasmussen (Rasmussen Reports)2010-09-2313
Selzer & Co.2010-09-210
Frequently asked questions
Who won the 2010 Iowa Senate race?
Chuck Grassley (R) won, by about 31.1 points (R+31.1).
When was the 2010 Iowa Senate election held?
It was held in November 2010.
Which party matches you?
These candidates split on taxes, health care, guns, and abortion. See where you land — and which members of Congress actually vote like you.