| Race (Click to Sort) | Poll | Results | Spread |
|---|
| New Hampshire Senate | Rasmussen | Shaheen 52, Sununu 44 | Shaheen +8 |
| Georgia Senate | Rasmussen | Chambliss 48, Martin 43 | Chambliss +5 |
| Oregon Senate | Rasmussen | Merkley 49, Smith 46 | Merkley +3 |
| New Hampshire Senate | SurveyUSA | Shaheen 53, Sununu 40 | Shaheen +13 |
| New Jersey Senate | SurveyUSA | Lautenberg 52, Zimmer 37 | Lautenberg +15 |
| West Virginia Senate | PPP (D) | Rockefeller 58, Wolfe 40 | Rockefeller +18 |
| North Carolina Senate | Research 2000 | Hagan 50, Dole 45 | Hagan +5 |
| Minnesota Senate | PPP (D) | Coleman 40, Franken 45, Barkley 14 | Franken +5 |
| New Hampshire Senate | ARG | Shaheen 53, Sununu 41 | Shaheen +12 |
| Colorado Senate | PPP (D) | Udall 56, Schaffer 41 | Udall +15 |
| Georgia Senate | Research 2000 | Chambliss 47, Martin 46 | Chambliss +1 |
| New Mexico Senate | PPP (D) | Udall 58, Pearce 39 | Udall +19 |
| Oregon Senate | PPP (D) | Merkley 51, Smith 43 | Merkley +8 |
| Michigan Senate | PPP (D) | Levin 58, Hoogendyk 36 | Levin +22 |
| Alaska Senate | Research 2000 | Begich 58, Stevens 36 | Begich +22 |
| Minnesota Senate | Research 2000 | Coleman 43, Franken 40, Barkley 15 | Coleman +3 |
| Minnesota Senate | NBC/Mason-Dixon | Coleman 42, Franken 36, Barkley 12 | Coleman +6 |
| New Hampshire Senate | Strategic Vision (R) | Shaheen 48, Sununu 41 | Shaheen +7 |
| Kentucky Senate | Courier-Journal | McConnell 47, Lunsford 42 | McConnell +5 |
| Oregon Senate | Research 2000 | Merkley 48, Smith 42 | Merkley +6 |
| Kentucky Senate | Research 2000 | McConnell 47, Lunsford 44 | McConnell +3 |
| Michigan Senate | Strategic Vision (R) | Levin 56, Hoogendyk 33 | Levin +23 |
| Mississippi Senate - Special | Research 2000 | Wicker 51, Musgrove 44 | Wicker +7 |
| Michigan Senate | Det. News (EPIC/MRA) | Levin 54, Hoogendyk 38 | Levin +16 |
| Minnesota Senate | Minn. Pub. Radio | Coleman 37, Franken 41, Barkley 17 | Franken +4 |
| North Carolina Senate | CNN/Time | Hagan 53, Dole 44 | Hagan +9 |
| Colorado Senate | CNN/Time | Udall 53, Schaffer 43 | Udall +10 |
| New Jersey Senate | Fairleigh Dickinson | Lautenberg 52, Zimmer 32 | Lautenberg +20 |
| Georgia Senate | CNN/Time | Chambliss 53, Martin 44 | Chambliss +9 |
