2008 Maine Republican Presidential Primary
| Pollster | Dates | N/Pop | Giuliani | Huckabee | McCain | Paul | Romney | Undecided |
| Critical Insights | 10/17-30/07 | RV | 11 | - | 7 | - | 15 | 51 |
| Critical Insights | 4/20-27/07 | RV | 24 | - | 21 | - | 12 | 25 |
| ARG | 2/2-6/07 | 600 LV | 33 | 0 | 22 | 0 | 13 | 18 |
| ARG | 4/25-5/2/06 | 600 LV | 18 | 0 | 37 | - | 4 | 34 |
| ARG | 2/2-9/06 | 600 LV | - | 0 | 39 | - | 10 | 39 |
