text:  ABC News, I'm Brian Clark. President Biden said Camp David with his family. Prominent Democrats have been public with their support after he struggled in Thursday's debate. But the age of the soon-to-be 82-year-old is in the spotlight. Dr. Anthony Fauci asked on ABC's This Week about the aging process. He really can't generalize. You have to take each individual person, you know, how they feel, what they feel they can do, you know, what their passion is, what their energy is. Those are the kind of things.