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.

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

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 ...

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

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

Transportation Secretary Sean Duffy and Rep. Jerry Nadler D-NY) got into a heated exchange over the safety of public transit ...

A group of 45 U.S. senators is urging Transportation Secretary Sean Duffy to take a firmer stand against efforts to examine ...

Democratic Rep. Jerry Nadler of New York got into a fiery exchange with Transportation Secretary Sean Duffy on Tuesday over ...

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.