Major News with Major Garrett: Kennedy Center; Reflecting pool; Canada trade impasse; North Korea, Russia & Ukraine

CBS News Chief Washington Correspondent & host of 'The Takeout' on CBS News 24/7, joins Chris and Amy every week. He says 'legal wrangling' continues over the Kennedy Center; work continues on repairing the Reflecting pool following a 'botched job'; an update on trade issues with Canada. Plus, how is North Korea helping Russia in its attacks on Ukraine?