There were many times where he didn't even know where he was. Watch here where he gets confused and Jill tries to end the appearance and walk him off stage, and he goes the wrong way - failing to even follow her.
And, of course, there are many other - including the debate. The MSM could hide it well enough.
Still, Joe was told he was in charge even when he didn't know about various things that he had supposedly signed. It should be child's play to get him to say he was in charge, give him his afternoon ice cream cone, and end the whole thing.
I don't see the point of trying to pursue this unless Biden has regressed tot he point where he is beyond even confusion.
Btw, why aren't you citing the source you quoted? Embarrassed about it's origin?
Link: https://www.skynews.com.au/world-news/united-states/very-confused-joe-biden-appears-lost-before-escorted-off-stage-by-jill-biden/video/15c1a109d9c41b5f22930e000fce1fdc