Trump staffing failure leaves US vulnerable through transition05:02
Shawn Brimley, former White House director of strategic planning on the National Security Council, talks with Rachel Maddow about Donald Trump's failure to staff up the National Security Council ahead of taking office.
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