03/06/2019
https://congress.gov...
"The White House refusing to cooperate with GAO's request is an insult to this Congress."
"Congressional oversight is the central theme to success, and congressional oversight has led to over $350 billion being saved over the last decade."
"We contacted White House Counsel's Office in April 2017 and January 2018 to solicit information from the Executive Office of the President related to coordinating travel for the President and any cost..."
"As of January 2019, the White House had not responded to our request for information."