Biden spox response to the new book on his loss of cognitive capacity: "We are still waiting for someone, anyone, to point out where Joe Biden had to make a presidential decision or make a presidential address where he was unable to do his job because of mental decline."
I can think of one of each!

Exclusive: Biden aides discussed wheelchair use if he were re-elected, new book says
Discussions of a wheelchair reflected the extent of Biden's physical decline — particularly the degeneration of his spine — and his aides' alarm over it as he sought a second term.