It’s worth noting that senility appears to be age-independent.
McCain is not senile. I watched him closely 4 years ago, and he was very sharp. I hope I am as spry when I am his age.
I have fought pretty hard to get a replacement in the Senate, but he has the support of the Establishment media and lots of money.
He may be very wrong, but he is not stupid or senile.
May be he is smart but McCain outsmarts himself. He believes he is bigger and badder than he is. He is digging a hole out of which he will not be able to extract himself.