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

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

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

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

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

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 administrator.

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

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

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

Trump withdrew Musk-ally and billionaire Jared Isaacman’s nomination for the NASA administrator role in May and has since labeled him a “blue blooded Democrat.” ...

Trump abruptly announced the appointment of Secretary of Transportation Sean Duffy as acting NASA Administrator as the U.S. Senate reviews the space agency's proposed budget.