Fate of Mueller investigation key in upcoming Barr A.G. hearing05:04
Devlin Barrett, national security reporter for the Washington Post, talks with Rachel Maddow about assurances Republican senators say they've been given that Donald Trump's new attorney general nominee William Barr won't interfere with the Mueller investigation, and the difficulty Democratic senators are having getting access to Barr ahead of his confirmation hearing.
Buzzfeed stands by Cohen story in face of Mueller objections15:52
Cohen charge of lying to Congress could set up more from Mueller13:27
Mueller filing offers insight into core of Buzzfeed Cohen report07:12
Farrow highlights contention in Buzzfeed Cohen report01:53
Isikoff: 'Red flags' marred Buzzfeed report on Cohen lies05:19
Be forewarned!: Trump preps return of Infrastructure Week02:17