Joshua Green on the "Devil's Bargain: Steve Bannon, Donald Trump & the Storming of the Presidency"

We turn now to look at the man many credit with helping Donald Trump become president: Steve Bannon, the former head of Breitbart News. During the early days of the Trump presidency, many suggested Bannon, Trump's chief strategist, was pulling many of the strings in the Oval Office. We speak to journalist Joshua Green about how Bannon took his hard-right nationalist politics from the fringes of the Republican Party all the way to the White House. Green has been closely following Bannon's career for years. In October 2015-before Bannon joined Trump's campaign-Green dubbed Bannon the "Most Dangerous Political Operative in America." His new book is "Devil's Bargain: Steve Bannon, Donald Trump, and the Storming of the Presidency."

Watch Part 2 || A Look at How a Racial Theorist Tied to Mussolini & Hitler Influenced Steve Bannon

Watch Part 3 || Joshua Green on How Bannon's Experience with Video Gamers Gave Rise to the Alt-Right