I wasn't asking you to ignore the fact that Trump is old, merely to stick to the age-related impediments that are actually relevant to his job.
That said, since making my comment I've become aware that there are reports that one of his rape victims tore him a new asshole, in a very literal sense. I'll leave you to google that, suffice to say this satisfies the "public interest" requirement as regards his incontinence, so have at it I guess.