Former Wisconsin congressman Sean Duffy was sworn in as new U.S. Transportation Secretary this week. Here's what his responsibilities include.

Sean Duffy, the new transportation secretary, is facing his first major crisis just hours after his swearing-in. Duffy, who was confirmed by the Senate Tuesday, quickly emerged as a public face of the federal government's response to the deadly plane crash at Reagan National Airport,

Sean Duffy was sworn in as Transportation Secretary on Tuesday and is now grappling with the fallout of the deadliest aviation disaster in the U.S. in 23 years. Duffy was most recently the co-host of “The Bottom Line” on Fox Business,