Guests: An interview with Stanley A. McChrystal, retired four-star Army general and author of the book "On Character: Choices That Define a Life." This week's panel discussion includes Scott Jennings, CNN senior political contributor and author of the upcoming book "A Revolution of Common Sense: How Donald Trump Stormed Washington and Fought for Western Civilization"; and Peter Hamby, host of Snapchat's "Good Luck America."