Duffy represented Wisconsin’s 7th Congressional District from 2011 until his early retirement in 2019. He has been on television for over 25 years.

Duffy is a former reality TV star who was one of Trump's most visible defenders on cable news — a prime concern for the media-focused president-elect.

If approved, Duffy would oversee a complex system of pipelines, railroads, cars, trucks, airlines and mass transit systems, as well as funding for highways.