My guess is that he is realizing day by day that this is the real purpose of his life, and that knowledge keeps him going and gives him strength.
I think you are right.
This is the capstone of a successful life.
If he can save America for his family and for others’ families, he will have done a wonderful thing.
I have to keep reminding myself he will be 70 in June.
I am younger and don’t have his energy.
By comparison, Bill Clinton will be 70 in August. What a difference.