Donald Trump is 70, Bernie Sanders is 75. Think about the hours the President puts in & the stress. Ginsberg (supreme court) is 83 & has more than 1 cancer. She has the body of a 125 year old but thinks she's just fine. Scalia (supreme court) was 79. He had so many health problems & knew he was walking death, yet the prick wouldn't retire.
Many rich/powerful people never "think they are too old" to stop. I don't know dick about Dick but I wouldn't count on it.