He's probably just firing the political staff. The White House has plenty of staffers to do things like mow the lawn, clean, maintain and repair the building and furnishings, archivists, waiters, chefs, florists, logistics people, event managers, horiticulturalists for the trees and shrubs, butlers, etc etc. There are even White House calligraphers for state dinners for foreign dignitaries. A lot of those people work through successions of Admins of both parties.
Hmmm...
Nothing against the non-political / blue collar type staff, but, Trump is into efficiency — he should make a point of reducing the staff by at least 20%, and still getting better results and happier employees. :-)