Should Comey have spoken up against Trump’s request?

Former FBI Director James Comey was asked by Sen. Dianne Feinstein why he didn't clearly speak up against President Trump's request to drop the criminal investigation into his former National Security Adviser Michael Flynn. Judy Woodruff gets analysis from John Carlin, Carrie Cordero, Greg Craig and George Terwilliger, four people with extensive experience in government and the law.