Amanpour: Gordon Brown, Chris Arnade and Tim Samuels

Gordon Brown, former British Prime Minister, joins Christiane Amanpour to examine the Conservative leadership contest between Boris Johnson and Jeremy Hunt, the future of the U.K. and Brexit. Our Michel Martin sits down with Chris Arnade, author of "Dignity", to discuss quitting his job on Wall Street in order to document the lives of "back row America". Tim Samuels, award-winning author and filmmaker, talks about his new book "Future Man", the need for a male reckoning and an end to toxic masculinity once and for all.