Counterintelligence investigation of Trump poses unique challenge04:19
David Laufman, former chief of the DOJ's counterintelligence and export control section, talks with Rachel Maddow about how an FBI counterintelligence investigation works and what changes would have to be made to accommodate an investigation of a sitting president.
Developments in three Mueller-related cases advance Trump scandal20:56
Manafort hid Russian intel-tied contacts, faces decades of prison10:56
Manafort lies related to Mueller probe's 'undisputed core': judge04:55
Two Trump attorneys accused of lying to federal ethics officials02:24
Trump undermines emergency declaration as soon as he makes it07:18
Emergency declaration could backfire, force Republican opposition08:08