Former attorney general Scott Harshbarger

Chance of running: Unclear. He hasn’t said whether or not he would run.

Pro: Has a lengthy record of public service, including two terms as the state’s attorney general. As the Democratic nominee for governor in 1998, he lost a close race to Republican incumbent Paul Celucci.

Con: He has been out of the public eye for several years, which could make it harder to raise money.