William Campbell is touting his credentials as a former chief financial officer for the U.S. Department of Veterans Affairs, the U.S. Coast Guard and Amtrak.
Retired teacher Armand Girard says one of his top priorities would be to hasten the development of slot machine gambling in Maryland.
Meanwhile, Brendan Madigan has put transparency in government spending at the top of his five-point plan if he is elected comptroller.
Franchot is running unopposed in the Democratic primary. Maryland's primary is Sept. 14.