Trent Morse, President Donald Trump‘s pick to sit on the Metropolitan Washington Airports Authority board of directors, is doubling down on his criticisms of Washington Dulles International Airport’s mobile lounges following Monday’s “people mover” crash.

Eighteen people were sent to the hospital on Monday when one of the controversial runway mobile lounges crashed into a dock at the Washington-area airport. Local flyers have harbored strong feelings, both good and bad, about the transport system since the 1960s, and this week’s crash launched the debate back into the spotlight.