Who is Sean Duffy, the new transportation secretary responding to the DC plane crash?

NEW YORK (AP) — 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, the closest airport to Washington, D.C. An Army h...