Sean Duffy’s first big test as secretary of the Department of Transportation came just one day after he was sworn into office ...

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

The U.S. Transportation Department said on Wednesday it plans to rescind a climate rule adopted by the administration of ...

Secretary of Transportation Sean Duffy said Americans should be assured that "you're safe" when flying in the wake of a deadly crash between a commercial airliner and an Army helicopter.

The order is the latest Trump administration effort against Biden-era initiatives that intended to promote electric vehicles ...