U.S. Transportation Secretary Duffy allows for "low emissions" flexibility, diverging from the previous zero-emission transit ...

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

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 ...

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

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

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

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

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.” ...

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

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.

Duffy, 53, was confirmed Jan. 28 by the Senate as U.S. transportation secretary. While NASA's official headquarters is in D.C., most of the agency's space program has operations in Florida's Cape.