He’ll be 78 in 2020. Outside of the gap from 2017 to today, he has been in public office since 1970. I can’t see that he has done any other kind of work in his adult life. He first ran for president 31 years ago. Just the fresh blood and perspective America needs.
All that, and he needs to make it through the election nearly fully functioning.
RGB may pull the deception off for a while but Plugs has far more funded opposition.