Craig Ferguson and Stephen Colbert Talk All Things America on ‘Late Show’

To promote his new History Channel show Join or Die, former CBS late night host Craig Ferguson was a guest on last night’s Late Show, where he talked with Colbert about becoming an American citizen, how easy his citizenship test was, how patriotic he is now that he’s officially American, and his thoughts on why presidential hopeful Donald Trump is so terrible: “You know his mother was Scottish? That’s the fucking problem right there! …can I say that on CBS now?�