Heck, even simple questions from voters at town halls have messed Biden’s mind. At times I thought he was going to start throwing punches the person asking the question.
https://www.rasmussenreports.com/public_content/politics/elections/election_2020/38_of_voters_think_biden_has_dementiaNearly four-out-of-10 voters believe Joe Biden has dementia. Most voters, including just over half of Democrats, feel it is important for the likely Democratic presidential nominee to publicly address the issue.
He'll want to fight Trump onstage.
That, or at least challenge Trump to a push ups contest.