Senator Schumer: 'Sessions is in dereliction of his duty'06:21
Senator Chuck Schumer, top Senate Democrat, talks with Rachel Maddow about Trump officials making non-legal excuses for not answering questions from members of Congress in the Trump-Russian investigation.
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