John Harris, chief of staff to Illinois Gov. Rod Blagojevich, resigned Friday morning.
Harris submitted his resignation letter in person, his lawyer told the Chicago Tribune, and will not be returning to the office.
Harris and Blagojevich were both arrested Tuesday morning on federal corruption charges. His resignation came as Illinois Attorney General Lisa Madigan asked the state Supreme Court to have Blagojevich declared unfit to serve and removed from office.
Crain's Chicago Business reports that rumors about Blagojevich's resignation are "widespread," though all have been denied.