 | Maine will also elect a United States Senator. If the election for United States Senator were today, would you vote for ... (choices rotated) Republican Susan Collins? Or Democrat Tom Allen? |
| TRACK POINTS | 09/24/08 | 10/21/08 | 11/01/08 | n/a | n/a | n/a | n/a | n/a | n/a |
| ± 3.8% | ± 3.9% | ± 3.8% | 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 |
| Susan Collins (R) | 55% | 54% | 56% | n/a | n/a | n/a | n/a | n/a | n/a |
| Tom Allen (D) | 39% | 43% | 42% | n/a | n/a | n/a | n/a | n/a | n/a |
| Undecided | 6% | 3% | 2% | 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 |