LESTER HOLT: Peter, you also have new reporting this evening about President Biden's interview with the special counsel, Robert Hur.
PETER ALEXANDER: Lester, President Biden became heated, you'll remember, responding to the special counsel's assertion that he could not remember within several years when his son Beau died. Last week the president criticized Hur for asking him about it.
PRESIDENT JOE BIDEN: How in the hell dare he raise that? Frankly, when I was asked the question, I thought to myself, it wasn't any of their damn business.
ALEXANDER: But tonight, NBC News has learned that Hur never asked that question according to two people familiar with the interview last fall. They say it was the president, not Hur or his team, who first introduced Beau Biden’s death. The sources say the president got the date, May 30th, correct- but not the year.