WASHINGTON, DC - JULY 29: U.S. Secretary of Transportation Sean Duffy (R) speaks alongside (L-R) Deputy Secretary of Transportation Steven G. Bradbury, MWAA board member Trent Morse, MWAA CEO Jack Potter, U.S. President Donald Trump, and United Airlines CEO Scott Kirby during an announcement to renovate Washington Dulles International Airport, in the Oval Office of the White House on July 29, 2026 in Washington, DC. The Department of Transportation plans to unveil a $22 billion plan to rebuild the federally owned airport that will include an underground U-shaped train to move travelers between terminals along with a major terminal expansion and more convenient car parking. (Photo by Chip Somodevilla/Getty Images)