It was a waste of 15 minutes which I can't retrieve. He didn't say why he's leaving, his health, was he told to leave/forced by his cohorts? It's difficult to believe that he was so adamant in staying in the race and nothing was going to change that but an act of God just a few days earlier.
This is a quote from his speech from the Oval Office.
"In recent weeks, it has become clear to me that I need to unite my party... So I’ve decided the best way forward is to pass the torch to a new generation."
It was all about him, health or no health he wasn't thinking about leaving before that Sunday.
The following are answers to the interview question about his stepping down by George Stephanopoulos just before the Sunday he quit.
PRESIDENT BIDEN: I don’t think anybody’s more qualified to be President or win this race than me.
About leaving the race.
PRESIDENT BIDEN: (LAUGH)- It depends on— on if the Lord Almighty comes down and tells me that, I might do that.
Who was this god, the "Lord Almighty" that told him to go! And that means Kamala and all his handlers knew about his health or whatever and kept it a secret, a coverup, from the citizens of the US.