White House hunts for 'executive time' schedule leaker
West Wing officials managing the hunt have enlisted the help of the White House IT office, and believe they are making progress in narrowing the search for potential suspects. One Trump official said the culprit is likely a career government employee who works in the White House, not a person appointed by Trump himself, but did not offer specific evidence.
https://www.politico.com/story/2019/02/08/trump-executive-time-schedule-1160691