Boy, Schumer's throwing Roberts some real softballs, and Roberts is inexplicably keeping the bat on his shoulder (to continue with the baseball metaphors that everyone's using today).
He's basically reading some of the more vile and inflammatory anti-judiciary comments from various nutcases on the Right - Robertson, etc. - and asking his opinion, and all Roberts will say is: "I don't think it's appropriate." A perfect chance to score some easy points by defending the idea of an independent judiciary, and he doesn't take it. Weird.