 | [Candidate names rotated] If you were filling out your ballot in the election for U.S. House of Representatives today, who would you vote for? Republican John Koster? Or Democrat Rick Larsen? |
| TRACK POINTS | 09/03/10 | 09/29/10 | 10/22/10 | n/a | n/a | n/a | n/a | n/a | n/a |
| ± 4% | ± 4.2% | ± 3.9% | n/a | n/a | n/a | n/a | n/a | n/a |
| ALL | ALL | ALL | n/a | n/a | n/a | n/a | n/a | n/a |
| John Koster (R) | 50% | 47% | 46% | n/a | n/a | n/a | n/a | n/a | n/a |
| Rick Larsen (D) | 46% | 50% | 50% | n/a | n/a | n/a | n/a | n/a | n/a |
| Undecided | 4% | 3% | 3% | n/a | n/a | n/a | n/a | n/a | n/a |
| Total | 100% | 100% | 100% | n/a | n/a | n/a | n/a | n/a | n/a |
| Composition | 100% | 100% | 100% | n/a | n/a | n/a | n/a | n/a | n/a |