On Mueller report, has Barr been 'forthcoming' or 'lawless?'

After Attorney General William Barr failed to appear before the House Judiciary Committee for a scheduled hearing on the Mueller report, House Democrats threatened to hold him in contempt. Meanwhile, Republicans argue Mueller’s investigation was biased against President Trump. Amna Nawaz talks to former Justice Department official David Rivkin and Neal Katyal, former acting solicitor general.