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

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.

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

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

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 is about to perform double duty after President Donald Trump named him to lead NASA on an interim basis. News of Duffy's appointment comes during a turbulent period ...

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.

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

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.” ...