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

President Trump announced Wednesday that Transportation Secretary Sean Duffy will temporarily lead the National Aeronautics ...

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

Transportation Secretary Sean Duffy is tackling the modernization of the nation's air traffic system while visiting the EAA ...

The selection of Secretary of Transportation Sean Duffy to temporarily lead NASA adds to the deep political uncertainties ...

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

U.S. Transportation Secretary Sean Duffy will dually serve as acting NASA administrator, President Donald Trump announced Wednesday.

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

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

Transportation Secretary Sean Duffy is blasting the MTA over its handling of subway crime .

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