It happens almost every day of every week, people on the far-right and the far-left doing or saying something off of the wall. We've profiled many of them here on American Morning with a segment we call "Wingnuts of the Week."
Now, one of our favorite guests, John Avlon, has a new book all about the subject. It's called "Wingnuts: How the lunatic fringe is hijacking America." He joined us Friday on American Morning.
Don't miss: Wingnuts of the Week