Even Colbert has mocked the president's cognitive ability Yes, this really happened. So you may have seen the interview where Biden was talking to Al Roker and Al Roker is not what you would call the hard-hitting interviewer. Here's what Colbert did so after they show the video Colbert comes back to his wearing aviator glasses like Biden And he does his Joe Biden impression and I'm gonna do my impression of Colbert's impersonation.