Solidly Democratic: 22
| State | Dem | GOP |
| Maine | 2 | 0 |
| Vermont | 1 | 0 |
| Massachusetts | 10 | 0 |
| Rhode Island | 2 | 0 |
| Connecticut | 4 | 1 |
| New York | 23 | 6 |
| New Jersey | 7 | 6 |
| Maryland | 6 | 2 |
| West Virginia | 2 | 1 |
| North Carolina | 7 | 6 |
| Tennessee | 5 | 4 |
| Arkansas | 3 | 1 |
| Indiana | 5 | 4 |
| Illinois | 11 | 8 |
| North Dakota | 1 | 0 |
| South Dakota | 1 | 0 |
| Iowa | 3 | 2 |
| Colorado | 4 | 3 |
| Washington | 6 | 3 |
| Oregon | 4 | 1 |
| California | 34 | 19 |
| Hawaii | 2 | 0 |