2006 Session
| Senator party-state | Yea | Nay | No Vote | Party Defections |
|---|---|---|---|---|
| Akaka D-HI | 179 | 86 | 14 (5.02%) | 19 (6.81%) |
| Alexander R-TN | 178 | 101 | 0 (0.00%) | 16 (5.73%) |
| Allard R-CO | 173 | 106 | 0 (0.00%) | 19 (6.81%) |
| Allen R-VA | 176 | 102 | 1 (0.36%) | 18 (6.45%) |
| Baucus D-MT | 192 | 73 | 14 (5.02%) | 41 (14.70%) |
| Bayh D-IN | 187 | 84 | 8 (2.87%) | 24 (8.60%) |
| Bennett R-UT | 181 | 97 | 1 (0.36%) | 23 (8.24%) |
| Biden D-DE | 163 | 82 | 34 (12.19%) | 18 (6.45%) |
| Bingaman D-NM | 180 | 88 | 11 (3.94%) | 21 (7.53%) |
| Bond R-MO | 177 | 101 | 1 (0.36%) | 24 (8.60%) |
| Boxer D-CA | 181 | 86 | 11 (3.94%) | 18 (6.45%) |
| Brownback R-KS | 165 | 102 | 12 (4.30%) | 38 (13.62%) |
| Bunning R-KY | 152 | 111 | 16 (5.73%) | 24 (8.60%) |
| Burns R-MT | 172 | 99 | 8 (2.87%) | 26 (9.32%) |
| Burr R-NC | 167 | 110 | 2 (0.72%) | 27 (9.68%) |
| Byrd D-WV | 189 | 80 | 10 (3.58%) | 58 (20.79%) |
| Cantwell D-WA | 195 | 83 | 1 (0.36%) | 22 (7.89%) |
| Carper D-DE | 197 | 80 | 2 (0.72%) | 39 (13.98%) |
| Chafee R-RI | 174 | 88 | 17 (6.09%) | 104 (37.28%) |
| Chambliss R-GA | 168 | 106 | 5 (1.79%) | 20 (7.17%) |
| Clinton D-NY | 192 | 83 | 4 (1.43%) | 21 (7.53%) |
| Coburn R-OK | 157 | 118 | 4 (1.43%) | 39 (13.98%) |
| Cochran R-MS | 178 | 93 | 8 (2.87%) | 24 (8.60%) |
| Coleman R-MN | 179 | 87 | 13 (4.66%) | 37 (13.26%) |
| Collins R-ME | 194 | 85 | 0 (0.00%) | 58 (20.79%) |
| Conrad D-ND | 195 | 77 | 7 (2.51%) | 44 (15.77%) |
| Cornyn R-TX | 173 | 106 | 0 (0.00%) | 15 (5.38%) |
| Craig R-ID | 177 | 99 | 3 (1.08%) | 23 (8.24%) |
| Crapo R-ID | 169 | 108 | 2 (0.72%) | 19 (6.81%) |
| Dayton D-MN | 171 | 93 | 15 (5.38%) | 22 (7.89%) |
| DeMint R-SC | 168 | 109 | 2 (0.72%) | 24 (8.60%) |
| DeWine R-OH | 192 | 86 | 1 (0.36%) | 67 (24.01%) |
| Dodd D-CT | 179 | 90 | 10 (3.58%) | 20 (7.17%) |
| Dole R-NC | 173 | 101 | 5 (1.79%) | 22 (7.89%) |
| Domenici R-NM | 179 | 87 | 13 (4.66%) | 24 (8.60%) |
| Dorgan D-ND | 191 | 86 | 2 (0.72%) | 42 (15.05%) |
| Durbin D-IL | 189 | 88 | 2 (0.72%) | 16 (5.73%) |
| Ensign R-NV | 158 | 115 | 6 (2.15%) | 33 (11.83%) |
| Enzi R-WY | 152 | 99 | 28 (10.04%) | 18 (6.45%) |
| Feingold D-WI | 170 | 109 | 0 (0.00%) | 46 (16.49%) |
| Feinstein D-CA | 197 | 78 | 4 (1.43%) | 19 (6.81%) |
| Frist R-TN | 179 | 99 | 1 (0.36%) | 16 (5.73%) |
| Graham R-SC | 154 | 113 | 12 (4.30%) | 42 (15.05%) |
| Grassley R-IA | 184 | 95 | 0 (0.00%) | 20 (7.17%) |
| Gregg R-NH | 164 | 109 | 6 (2.15%) | 36 (12.90%) |
| Hagel R-NE | 175 | 98 | 6 (2.15%) | 35 (12.54%) |
| Harkin D-IA | 177 | 98 | 4 (1.43%) | 29 (10.39%) |
| Hatch R-UT | 175 | 86 | 18 (6.45%) | 16 (5.73%) |
| Hutchison R-TX | 186 | 90 | 3 (1.08%) | 20 (7.17%) |
| Inhofe R-OK | 162 | 111 | 6 (2.15%) | 31 (11.11%) |
| Inouye D-HI | 178 | 80 | 21 (7.53%) | 25 (8.96%) |
| Isakson R-GA | 170 | 103 | 6 (2.15%) | 17 (6.09%) |
| Jeffords I-VT | 171 | 90 | 18 (6.45%) | 0 (0.00%) |
| Johnson D-SD | 211 | 65 | 3 (1.08%) | 34 (12.19%) |
| Kennedy D-MA | 186 | 84 | 9 (3.23%) | 16 (5.73%) |
| Kerry D-MA | 173 | 87 | 19 (6.81%) | 21 (7.53%) |
| Kohl D-WI | 196 | 79 | 4 (1.43%) | 19 (6.81%) |
| Kyl R-AZ | 173 | 106 | 0 (0.00%) | 21 (7.53%) |
| Landrieu D-LA | 212 | 61 | 6 (2.15%) | 47 (16.85%) |
| Lautenberg D-NJ | 185 | 86 | 8 (2.87%) | 16 (5.73%) |
| Leahy D-VT | 186 | 92 | 1 (0.36%) | 22 (7.89%) |
| Levin D-MI | 184 | 94 | 1 (0.36%) | 23 (8.24%) |
| Lieberman D-CT | 180 | 72 | 27 (9.68%) | 32 (11.47%) |
| Lincoln D-AR | 204 | 72 | 3 (1.08%) | 31 (11.11%) |
| Lott R-MS | 173 | 93 | 13 (4.66%) | 17 (6.09%) |
| Lugar R-IN | 180 | 99 | 0 (0.00%) | 34 (12.19%) |
| Martinez R-FL | 175 | 95 | 9 (3.23%) | 29 (10.39%) |
| McCain R-AZ | 150 | 103 | 26 (9.32%) | 53 (19.00%) |
| McConnell R-KY | 181 | 98 | 0 (0.00%) | 15 (5.38%) |
| Menendez D-NJ | 181 | 85 | 13 (4.66%) | 19 (6.81%) |
| Mikulski D-MD | 190 | 81 | 8 (2.87%) | 12 (4.30%) |
| Murkowski R-AK | 182 | 88 | 9 (3.23%) | 31 (11.11%) |
| Murray D-WA | 189 | 87 | 3 (1.08%) | 23 (8.24%) |
| Nelson D-FL | 204 | 70 | 5 (1.79%) | 45 (16.13%) |
| Nelson D-NE | 190 | 89 | 0 (0.00%) | 110 (39.43%) |
| Obama D-IL | 187 | 89 | 3 (1.08%) | 17 (6.09%) |
| Pryor D-AR | 212 | 67 | 0 (0.00%) | 40 (14.34%) |
| Reed D-RI | 189 | 90 | 0 (0.00%) | 17 (6.09%) |
| Reid D-NV | 190 | 88 | 1 (0.36%) | 17 (6.09%) |
| Roberts R-KS | 176 | 101 | 2 (0.72%) | 16 (5.73%) |
| Rockefeller D-WV | 124 | 42 | 113 (40.50%) | 19 (6.81%) |
| Salazar D-CO | 190 | 77 | 12 (4.30%) | 20 (7.17%) |
| Santorum R-PA | 170 | 95 | 14 (5.02%) | 24 (8.60%) |
| Sarbanes D-MD | 184 | 90 | 5 (1.79%) | 19 (6.81%) |
| Schumer D-NY | 191 | 83 | 5 (1.79%) | 17 (6.09%) |
| Sessions R-AL | 171 | 107 | 1 (0.36%) | 22 (7.89%) |
| Shelby R-AL | 174 | 98 | 7 (2.51%) | 26 (9.32%) |
| Smith R-OR | 186 | 92 | 1 (0.36%) | 37 (13.26%) |
| Snowe R-ME | 186 | 85 | 8 (2.87%) | 73 (26.16%) |
| Specter R-PA | 190 | 82 | 7 (2.51%) | 68 (24.37%) |
| Stabenow D-MI | 200 | 76 | 3 (1.08%) | 24 (8.60%) |
| Stevens R-AK | 182 | 93 | 4 (1.43%) | 37 (13.26%) |
| Sununu R-NH | 164 | 111 | 4 (1.43%) | 33 (11.83%) |
| Talent R-MO | 176 | 99 | 4 (1.43%) | 34 (12.19%) |
| Thomas R-WY | 162 | 98 | 19 (6.81%) | 20 (7.17%) |
| Thune R-SD | 177 | 99 | 3 (1.08%) | 16 (5.73%) |
| Vitter R-LA | 171 | 104 | 4 (1.43%) | 25 (8.96%) |
| Voinovich R-OH | 175 | 100 | 4 (1.43%) | 44 (15.77%) |
| Warner R-VA | 175 | 95 | 9 (3.23%) | 36 (12.90%) |
| Wyden D-OR | 184 | 93 | 2 (0.72%) | 24 (8.60%) |
| Average | 179.25 | 91.74 | 8.00 | 29.14 (10.44 %) |
| Average D | 186.91 | 82.34 | 9.73 | 27.91 (10.00 %) |
| Average I | 171.00 | 90.00 | 18.00 | 0.00 (0.00 %) |
| Average R | 173.27 | 99.29 | 6.44 | 30.65 (10.99 %) |