President Donald Trump on Monday named Transportation Secretary Sean Duffy to also serve as interim NASA administrator.

Overhaul of nation's air traffic control system has started with training of controllers, Transportation Secretary Sean Duffy ...

Transportation Secretary Sean Duffy is about to perform double duty after President Donald Trump named him interim head of ...

Sean Duffy, the U.S. Transportation Secretary and former Wisconsin congressman, spent his second day at EAA AirVenture in ...

We are trying to simplify and enhance our relationships with states so they can assume responsibility for environmental ...

U.S. Secretary of Transportation Sean Duffy attended AirVenture on Tuesday to make an announcement for aviation regulation.

The US Department of Transportation said the move “left American businesses holding the bag for millions in increased costs.” ...

President Donald Trump said on Wednesday he is directing Transportation Secretary Sean Duffy to be the interim NASA ...

The U.S. Transportation Secretary is so pro-car that he risks making transportation less safe. Plus other news.

During her remarks in a House hearing this week, Representative Julia Brownley grilled Sean Duffy over SpaceX's work at the ...