Why Do We Accept Adulterous Politicians?

It seems that infidelity and they presidency go hand in hand. Why does the public give them a pass though like JFK, Clinton, and now Trump? Are finally ready to stop accepting the adulterous politician? We opened the lines to get your thoughts. Plus, Frontline's Martin Smith, TV expert Bob Thompson, Harvard Business School historian Nancy Koehn, CNN's John King, and Steve Coll on his new book on the war in Afghanistan.