| Election 2008 | Obama | McCain | Spread |
|---|---|---|---|
| National | 50.2 | 42.1 | Obama +8.1 |
| Battlegrounds | Obama | McCain | Spread |
| Colorado | 49.0 | 44.0 | Obama +5.0 |
| Nevada | 49.2 | 46.3 | Obama +2.9 |
| Michigan | 50.7 | 40.2 | Obama +10.5 |
| Ohio | 48.9 | 45.5 | Obama +3.4 |
| Pennsylvania | 53.4 | 40.0 | Obama +13.4 |
| Florida | 50.0 | 45.0 | Obama +5.0 |
| Virginia | 50.6 | 44.1 | Obama +6.5 |