Biden scoffs when asked if he's taken a cognitive test

Automatic TRANSCRIPT

News Biden snapped at a reporter today when asked if he has taken a cognitive test. Presumptive Democratic nominee turns it around and asked CBS news correspondent Errol Barnett if he was a junkie and got tested for cocaine use. 77 year old Biden eventually told Barnett he has never taken a cognitive tests. But in June, he said it a campaign event. He was constantly tested. Biden said he's looking forward to standing on the same stage as President Trump in the presidential debates. Mr Trump is 74. Three years younger

Coming up next