Sean Duffy, the new transportation secretary, is facing his first major crisis just hours after his swearing-in.

Clinton chimed in, tweeting, “They have no relevant experience. Most of them aren’t old enough to rent a car. And you’re ...

Prior to his appointment, Sean Duffy served as a Wisconsin congressman and district attorney and before that he was a reality ...

Sean Duffy has been confirmed as transportation secretary, giving him a key role in President Donald Trump's administration.

Transportation Secretary Sean Duffy said his department will come out with a plan to address critical understaffing in ...

Transportation Secretary Sean Duffy, with District of Columbia Mayor Muriel Bowser, left, and other officials, speaks during a news conference at Ronald Reagan Washington National Airport ...

Transportation Secretary Sean Duffy had been sworn in just hours before the deadly midair collision of a plane and helicopter near Washington, D.C.