Fired cybersecurity chief Chris Krebs is reportedly suing one of president Trump's lawyers for saying he should be shot.
Mr Krebs, former head of the US government's cybersecurity agency, has filed a lawsuit against Joseph diGenova claiming defamation and distress.
He is seeking monetary damages and demanding the removal of a threatening video held by Newsmax, the outlet where Mr diGenova made the comments, The New York Times reports.
Mr Krebs's lawsuit also claims that Newsmax works closely with Mr diGenova to amplify his attacks on his political opponents, according to the report.