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Toss-up · 2004 Senate
Iowa Senate
In the 2004 Iowa Senate race, Chuck Grassley (R) won by about 42 points.
Actual result
R+42.3
Final polls said
R+44.7
3 late polls · ✓
VotePredictor Elections predicted
—
Winner
Rep
"Final polls" = the last ~3 weeks; the prediction is walk-forward. How this is scored →
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 | Zogby Analytics | R+46.0 | 3.7 | ✓ |
| 2 | Opinion Dynamics | R+47.0 | 4.7 | ✓ |
The polls behind it
4 polls · newest firstPollsterDateSampleMiss
Zogby Analytics2004-10-304
Opinion Dynamics2004-10-305
Zogby Analytics2004-10-261
Opinion Dynamics2004-09-212
Frequently asked questions
Who won the 2004 Iowa Senate race?
Chuck Grassley (R) won, by about 42.3 points (R+42.3).
When was the 2004 Iowa Senate election held?
It was held in November 2004.