| Name | Pty | State | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 2000 Score | Score99 | Score98 | Score97 | Score96 | Score95 | Score94 | Life Score |
| Sessions | R | AL | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 8% | 0% | NA | NA | NA | NA | 3% |
| Shelby | R | AL | - | - | - | - | - | - | - | - | - | + | - | - | - | - | - | 7% | 15% | 0% | 16% | 17% | 38% | 31% | 18% |
| Murkowski | R | AK | A | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 8% | 0% | 0% | 0% | 15% | 0% | 3% |
| Stevens | R | AK | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 8% | 0% | 5% | 11% | 0% | 15% | 6% |
| Kyl | R | AZ | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 8% | 13% | 5% | 0% | 50% | 7% | 12% |
| McCain | R | AZ | A | + | A | - | A | A | A | A | - | A | A | A | - | + | + | 20% | 31% | 38% | 16% | 11% | 15% | 23% | 22% |
| Hutchinson | R | AR | - | - | - | - | - | - | - | - | - | - | - | - | - | + | - | 7% | 23% | 25% | 16% | 11% | 11% | 0% | 13% |
| Lincoln | D | AR | - | - | + | - | - | - | - | - | - | - | - | - | + | + | + | 27% | NA | NA | NA | NA | NA | NA | NA |
| Boxer | D | CA | + | + | A | + | + | + | + | + | + | + | + | + | + | + | + | 93% | 92% | 100% | 95% | 100% | 92% | 100% | 96% |
| Feinstein | D | CA | + | + | + | + | + | + | + | + | + | - | + | - | + | + | + | 87% | 92% | 100% | 84% | 89% | 77% | 75% | 86% |
| Allard | R | CO | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 0% | 5% | 11% | 17% | 7% | 8% |
| Campbell | R | CO | - | - | - | - | - | - | + | - | - | - | - | - | - | - | - | 7% | 23% | 13% | 11% | 22% | 77% | 50% | 29% |
| Dodd | D | CT | + | + | - | + | + | + | + | + | + | - | + | + | + | + | + | 87% | 92% | 100% | 79% | 89% | 77% | 62% | 84% |
| Lieberman | D | CT | + | + | + | + | + | + | + | + | + | - | + | - | + | + | + | 87% | 92% | 100% | 79% | 89% | 77% | 85% | 87% |
| Biden | D | DE | + | A | + | + | - | + | + | + | + | - | + | - | + | + | + | 73% | 77% | 88% | 100% | 100% | 77% | 77% | 85% |
| Roth | R | DE | P | + | + | + | - | + | - | + | - | - | - | - | - | + | + | 47% | 62% | 50% | 68% | 50% | 46% | 38% | 51% |
| Graham | D | FL | + | + | + | - | + | A | - | + | + | - | + | + | + | + | + | 73% | 77% | 75% | 84% | 100% | 85% | 85% | 83% |
| Mack | R | FL | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 8% | 13% | 0% | 6% | 0% | 8% | 5% |
| Cleland | D | GA | + | + | - | + | + | + | - | + | + | - | + | - | + | + | + | 73% | 77% | 50% | NA | NA | NA | NA | 67% |
| Coverdell | R | GA | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 0% | 0% | 6% | 8% | 0% | 4% |
| Akaka | D | HI | + | + | + | + | + | + | + | + | + | - | + | - | + | + | - | 80% | 77% | 75% | 84% | 94% | 100% | 92% | 86% |
| Inouye | D | HI | + | - | - | - | + | + | + | - | - | - | + | - | + | + | + | 53% | 62% | 50% | 63% | 72% | 85% | 62% | 64% |
| Craig | R | ID | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 0% | 0% | 0% | 8% | 9% | 5% |
| Crapo | R | ID | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 11% | 7% | 0% | 5% | 6% | 10% | 6% |
| Durbin | D | IL | + | + | + | + | + | + | + | + | + | - | + | - | + | + | + | 87% | 92% | 88% | 84% | 84% | 56% | 43% | 76% |
| Fitzgerald | R | IL | - | + | + | + | - | + | - | - | - | P | P | P | + | - | - | 33% | NA | NA | NA | NA | NA | NA | NA |
| Bayh | D | IN | + | + | - | + | - | + | + | + | + | - | + | - | + | + | + | 73% | NA | NA | NA | NA | NA | NA | NA |
| Lugar | R | IN | - | - | + | + | - | - | - | - | - | - | - | - | - | - | - | 13% | 15% | 13% | 16% | 11% | 15% | 8% | 13% |
| Grassley | R | IA | - | - | - | + | - | - | - | - | - | - | - | - | - | - | - | 7% | 23% | 0% | 11% | 11% | 8% | 15% | 11% |
| Harkin | D | IA | + | + | + | A | + | + | + | + | + | + | + | + | + | + | + | 93% | 77% | 75% | 84% | 89% | 85% | 77% | 83% |
| Brownback | R | KS | - | - | + | + | - | + | - | - | - | - | - | + | - | + | - | 33% | 15% | 25% | 42% | 21% | 0% | NA | 23% |
| Roberts | R | KS | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 0% | 5% | 11% | 6% | 0% | 5% |
| Bunning | R | KY | - | - | A | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 11% | 0% | 11% | 5% | 17% | 14% | 8% |
| McConnell | R | KY | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 8% | 0% | 0% | 0% | 0% | 0% | 1% |
| Breaux | D | LA | - | - | - | - | A | - | - | - | - | - | + | - | + | + | + | 27% | 54% | 50% | 32% | 33% | 54% | 31% | 40% |
| Landrieu | D | LA | - | + | + | - | - | - | - | - | - | - | + | - | + | + | + | 40% | 69% | 63% | NA | NA | NA | NA | 57% |
| Collins | R | ME | - | + | + | + | + | - | - | + | - | - | - | - | - | + | - | 40% | 54% | 63% | NA | NA | NA | NA | 52% |
| Snowe | R | ME | - | + | + | + | + | - | - | + | - | - | - | - | - | + | - | 40% | 54% | 63% | 58% | 67% | NA | 71% | 59% |
| Mikulski | D | MD | + | + | - | - | - | + | + | + | + | + | + | - | + | + | + | 73% | 92% | 88% | 84% | 83% | 77% | 85% | 83% |
| Sarbanes | D | MD | + | + | + | - | + | + | + | + | + | - | + | + | + | + | + | 87% | 100% | 88% | 100% | 100% | 100% | 92% | 95% |
| Kennedy | D | MA | + | A | + | + | + | + | A | + | + | - | + | + | + | + | - | 73% | 92% | 88% | 84% | 94% | 92% | 92% | 88% |
| Kerry | D | MA | + | + | + | + | + | + | + | + | + | - | + | - | + | + | + | 87% | 92% | 100% | 95% | 94% | 92% | 92% | 93% |
| Abraham | R | MI | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 38% | 13% | 0% | 6% | NA | NA | 11% |
| Levin | D | MI | + | + | - | + | - | + | - | + | + | - | + | - | + | + | + | 67% | 77% | 75% | 89% | 100% | 85% | 69% | 80% |
| Grams | R | MN | - | - | - | + | - | - | - | - | - | - | - | - | - | - | - | 7% | 15% | 0% | 0% | 0% | NA | 0% | 4% |
| Wellstone | D | MN | + | + | + | + | + | - | + | + | + | + | + | + | + | + | - | 87% | 100% | 100% | 89% | 100% | 100% | 100% | 97% |
| Cochran | R | MS | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 23% | 13% | 11% | 6% | 8% | 0% | 9% |
| Lott | R | MS | - | A | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 8% | 0% | 0% | 0% | 0% | 8% | 2% |
| Ashcroft | R | MO | - | - | A | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 0% | 11% | 0% | NA | NA | 5% |
| Bond | R | MO | - | - | A | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 0% | 0% | 0% | 8% | 15% | 5% |
| Baucus | D | MT | + | + | + | - | + | - | + | + | + | - | + | - | + | + | + | 73% | 77% | 50% | 63% | 72% | 69% | 62% | 67% |
| Burns | R | MT | - | - | - | - | - | - | - | - | - | - | - | A | - | - | - | 0% | 15% | 0% | 0% | 0% | 8% | 15% | 5% |
| Hagel | R | NE | - | - | - | + | - | - | - | - | - | - | - | - | - | - | - | 7% | 15% | 0% | NA | NA | NA | NA | 7% |
| Kerrey | D | NE | + | + | + | - | + | + | - | + | + | - | + | - | + | + | - | 67% | 77% | 75% | 63% | 67% | 62% | 46% | 65% |
| Bryan | D | NV | + | - | - | + | + | + | + | + | + | + | + | - | + | + | + | 80% | 92% | 63% | 79% | 83% | 85% | 85% | 81% |
| Reid | D | NV | + | - | - | - | + | + | + | + | + | - | + | - | + | + | + | 67% | 77% | 75% | 68% | 72% | 85% | 85% | 76% |
| Gregg | R | NH | - | + | - | + | + | A | - | + | - | - | A | - | - | - | - | 27% | 46% | 50% | 26% | 22% | 23% | 13% | 30% |
| Smith Bob | R | NH | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 38% | 11% | 11% | 8% | 18% | 14% |
| Lautenberg | D | NJ | + | + | A | - | + | + | + | + | + | - | + | + | + | + | - | 73% | 100% | 100% | 100% | 100% | 100% | 100% | 96% |
| Torricelli | D | NJ | + | + | + | - | + | + | + | + | + | - | + | - | + | + | - | 73% | 85% | 88% | 68% | 84% | 72% | 57% | 75% |
| Bingaman | D | NM | + | - | + | + | + | + | + | - | - | - | + | - | + | + | + | 67% | 85% | 75% | 63% | 78% | 69% | 62% | 71% |
| Domenici | R | NM | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 15% | 0% | 5% | 11% | 15% | 0% | 7% |
| Moynihan | D | NY | + | A | A | - | + | + | + | + | A | - | + | + | + | + | - | 60% | 69% | 63% | 79% | 83% | 100% | 92% | 78% |
| Schumer | D | NY | + | + | + | + | + | + | + | + | + | - | + | + | + | + | - | 87% | 89% | 93% | 95% | 95% | 94% | 86% | 91% |
| Edwards | D | NC | + | + | - | - | + | + | + | + | + | - | + | - | + | + | - | 67% | NA | NA | NA | NA | NA | NA | NA |
| Helms | R | NC | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0% | 0% | 0% | 0% | 0% | 15% | 15% | 4% |
| Conrad | D | ND | + | - | - | + | - | + | + | + | + | - | +< |