Trump Says Former Security Aide Who Endorsed Biden Is ‘Lowlife’

President Donald Trump called a former senior aide in his administration who publicly endorsed Joe Biden on Monday “a lowlife” and said he had never met him.

Miles Taylor, who was chief of staff to former Homeland Security Secretary Kirstjen Nielsen, taped an ad for the group Republican Voters Against Trump in which he says Trump “wanted to exploit” the agency “for his own political purposes.”