Former Senator Claire McCaskill and former White House Communications Director Jennifer Palmieri sit down for a conversation with NBC News presidential historian Michael Beschloss on how former president Trump has changed long held presidential traditions, and how history will judge this time. The focus then shifts to compare and contrast how former presidents have worked with (or against) the American legal system when they have been accused of crimes or impeached in Congress.Note: This conversation was recorded on Friday, May 22.