| Alabama | One party | Missouri | One party | |
| Alaska | One party | Minnesota | One party | |
| Arizona | One party | Montana | All party | |
| Arkansas | One party | Nebraska | One party | |
| California | All party | Nevada | One Party | |
| Colorado | One party | New Hampshire | All Party | |
| Connecticut | All party | New Jersey | One party | |
| Delaware | All party | New Mexico | One party | |
| District Of Columbia | All party | New York | One party | |
| Florida | All party | North Carolina | One party | |
| Georgia | One party | North Dakota | One party | |
| Hawaii | One party | Oklahoma | One party | |
| Idaho | One party | Oregon | One party | |
| Illinois | One party | Ohio | One party | |
| Indiana | One party | Pennsylvania | All party | |
| Iowa | One party | Rhode Island | One party | |
| Kansas | One party | South Carolina | One party | |
| Kentucky | One party | South Dakota | One party | |
| Louisiana | One party | Tennessee | One party | |
| Maine | One party | Texas | One Party | |
| Massachusetts | All party | Utah | One Party | |
| Maryland | All party | Vermont | One Party | |
| Michigan | One party | Virginia | One Party | |
| Minnesota | One party | West Virginia | One Party | |
| Mississippi | One party | Washington | All party |
Wisconsin: One Party
Wyoming: One party