Former Department of Children and Families Secretary George Sheldon will seek the Democratic nomination to challenge Republican Attorney General Pam Bondi.
Sheldon says he plans to file paperwork Monday to run for the seat.
He recently resigned from his position as acting assistant secretary for the Administration for Children and Families at the U.S. Department of Health and Human Services.
He served as the DCF secretary under then-Republican Gov. Charlie Crist. Crist has since become a Democrat and is likely to run for governor.
Sheldon also served as deputy attorney general under Bob Butterworth and is a former state representative.
He also sought the nomination for attorney general in 2002, coming in third to current Orlando Mayor Buddy Dyer. Dyer lost to Crist that year.