.....who doesn't realise that he is past his prime and needs to leave it to someone else in the Democratic Party to run for the US presidency. Just like an octogenarian car driver, who insists that they are fit to drive, when everyone around them can see otherwise and it's up to their nearest and dearest to take away their car keys or report them to the DVLA.
Unfortunately, in the case of Joe Biden, he is wilfully refusing to listen to everyone telling him that if he tries for another term against Trump he will lose and give that awful man more power.
Today Biden said in an interview that only if a doctor told him he wasn't capable of standing would he listen. So, just like a lot of elderly drivers whose reflexes and reaction times are seriously on the decline , but won't listen until they have an accident, or worse, kill someone. I just despair!