NEW: CNN's Jake Tapper hammers Democrats for not taking Biden's mental decline seriously, calls out Chris Coons to his face for shilling for Biden. "There is a pattern of democratic officials seemingly trying to convince you to not believe what you saw and what you heard with your eyes." Tapper later called out Coons to his face for not being honest with the American people. "With all due respect, it is not honest to say that this is just one night. There have been moments like this that people have seen in front of the cameras and other moments without cameras." Tapper then played a clip of Biden forgetting how to speak during a DACA speech at the White House. Coons: "That doesn't trouble me at all."