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 Oshkosh announcing a new federal rule by the Trump administration targeting ...

Transportation Secretary Sean Duffy, the former Wisconsin congressman, is about to perform double duty after President Donald Trump named him to lead NASA on an interim basis. News of Duffy's ...

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

Former Wisconsin Congressman Sean Duffy named interim NASA head while still serving as DOT secretary News of Duffy's appointment comes during a turbulent period in NASA's history, as the U.S ...