The Transportation Secretary's claim that the federal government has "sovereign prerogatives" is a silly kid's argument.

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

Six months after a deadly mid-air collision at Reagan National Airport, Transportation Secretary Sean Duffy says $12.5 ...

More than 200 current and former NASA employees have signed an open letter known as the Voyager Declaration pushing back on ...

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

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.

DOT head Sean Duffy announced $488 million in grants, proposed streamlining the grant process, encouraged state-led ...

In a letter to NASA's interim chief, Sean Duffy, the group slammed "wasteful changes" that undermine NASA's core mission.

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

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