$800 million military aid package. certainly a lot going on in ukraine over the past 12 hours. vladimir putin announcing that the attack of the steel plant in mariupol where the last holdouts are remaining is going to be put off. he s stalling that attack simply because he understands what an extraordinary price russia would have to pay if they went in and fought them in what clint watts explained to us was as bad of a military setting as attackers could actually ever confront. so that s going on right now. russia trying to make movement across donbas and president biden talking about a robust new military aid package to ukraine. we ll be hearing from the president in a minute. let s go right now to nbc news white house correspondent carol lee who joins us.