Biden was never going to drive off the cliff on his own. Wallace was making sure to keep him on the road as handlers on the ear piece fed Joe talking points. You think Biden’s performance was bad remove the ear piece and see how much worse he is even with Wallace helping. The dementia has him in its clutches and Trump knew Biden would have feed in his ear and the aid of Wallace.
When Biden looked down numerous times, he may have been trying to listen to his ear piece.