James Carville: "I think that Trump and Trumpism is the greatest threat this country has faced since the fall of communism. The only way to deal with it is to defeat it. If Michael Bennet is a Democratic nominee, you're going to get 55 percent of the popular vote and pick up 55 Senate seats. It will be the end of Trumpism. Trumpism doesn't have to just be defeated at the polls. It's got to be decimated. It's got to look like a beating."