An investigation of how Donald Trump defied expectations to win the presidency -- and what it suggests about how he will govern. Subscribe on YouTube: http://bit.ly/1BycsJW Through revealing interviews with campaign insiders, filmmaker Michael Kirk and his team examine how Trump rallied millions of supporters and defeated adversaries — and what it suggests about how he will govern. Viewers like you help make this journalism possible. Support your local PBS Station here: http://www.pbs.org/donate FRONTLINE has 200+ films streaming on our site. Watch here: http://to.pbs.org/1PKSeG5 Twitter: https://twitter.com/frontlinepbs Facebook: https://www.facebook.com/frontline Google+: https://plus.google.com/+frontline/posts FRONTLINE is streaming more than 200 documentaries online, for free, here: http://to.pbs.org/hxRvQP FRONTLINE is made possible by PBS and CPB. Major support is provided by The John D. and Catherine T. MacArthur Foundation. Additional support is provided by the Park Foundation, the John and Helen Glessner Family Trust, and Jon and Jo Ann Hagler on behalf of the Jon L. Hagler Foundation.