Only on the "CBS This Morning" podcast, Colorado Senator Michael Bennet joins "60 Minutes" correspondent John Dickerson to discuss his campaign for the Democratic presidential nomination and his new book, "The Land of Flickering Lights: Restoring America In An Age of Broken Politics." Senator Bennet makes the case for why he's the right Democrat, among the crowded field, to go head-to-head with President Donald Trump in 2020. They discuss the current political climate, President Trump's judiciary and regulatory victories and the Gang of Eight's failed bi-partisan attempt at immigration reform in 2013. Bennet says he believes Senate Majority leader Mitch McConnell is responsible for Trump's victory in the 2016 election and McConnell's "assault on our system of government" is "unforgiveable."