Donald Trump has revoked every executive order Joe Biden signed with an autopen - escalating the battle over the legitimacy of the ailing ex-president's administration. 'I am hereby canceling all executive orders, and anything else that was not directly signed by Crooked Joe Biden, because the people who operated the autopen did so illegally,' Trump wrote on Truth Social on Friday. 'Joe Biden was not involved in the autopen process and, if he says he was, he will be brought up on charges of perjury.' Presidents may legally undo executive orders signed by their predecessors, including pardons, however there is...