Secretary of Transportation Sean Duffy immediately moved to roll back fuel efficiency standards moments after being sworn in ...

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

New transportation secretary Sean Duffy faces his first crisis as an Army helicopter collides with an American Airlines jet ...

Duffy was sworn into the Cabinet position just hours before an American Airlines passenger plane collided with a U.S. Army ...

Sean Duffy was sworn in as Transportation Secretary on Tuesday and is now grappling with the fallout of the deadliest ...