DuMont got his start in broadcasting as a producer for WGN 720 AM in 1968. He interrupted his radio career to make an unsuccessful run for a seat in the Illinois Senate in 1970, then returned to WGN, this time as a producer for Howard Miller, a controversial radio personality.
DuMont began his broadcasting career as a producer at WGN 720 AM in 1968. He briefly left radio to run an unsuccessful campaign for the Illinois Senate in 1970 and then returned to WGN under Howard Miller's production, who was known for controversial views.