Trump has attempted to revoke the pardons granted by outgoing President Biden by claiming they were invalid [nbcnews.com] because Biden used an autopen and not a real pen.
He has also revoked the Secret Service protection of Biden's Wife, Daughter, and Son [ctvnews.ca], despite spending 1.7 million USD of taxpayer money at the end of his previous term in office, extending similar protection for a six-month term to all four of his adult children and three senior administration officials.