Yeah I don't think he's actually senile lol, even I forget people's names
But some people's age just shows more than others - Debbie Harry is the same age as my nan, but only one of them is still performing two hour gigs while touring a country on the other side of the planet from their home
Biden does seem older than he is, and he's got a creaky old man voice made worse by his stammer ... But that shouldn't automatically disqualify him from a leadership role.