Alabama, Illinois, Louisiana, Pennsylvania, Texas, West Virginia, Michigan, Ohio
NON-PARTISAN ELECTIONS
Arkansas, Georgia, Idaho, Kentucky, Minnesota, Mississippi, Montana, Nevada, North Carolina, North Dakota, Oregon, Washington, Wisconsin
Alaska, Arizona, California, Colorado, Florida, Indiana ,Iowa, Kansas, Maryland, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, Tennessee, Utah, Wyoming
APPOINTMENT WITH NO REELECTION
Connecticut, Delaware, Hawaii, Maine, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, South Carolina, Vermont, Virginia
*Ohio and Michigan use a partisan process to nominate candidates, but do not list partisan affiliation on general election ballots.