we also know that this has been a real weekend of a flurry of diplomacy we are coming out of, president biden staying at the white house, having a national security meeting, a rare one on a sunday, in the situation room as u.s. officials have been paying close attention to those developments on the ground in ukraine. still leaving out dim hope for some type of a diplomatic resolution here, even as u.s. officials tell nbc news that at this point in time the u.s. believes that putin has already given an order that russian military units have been given orders to proceed down the pathway towards an invasion, the u.s. hoping now that this last-minute diplomacy could persuade the russians to pull back from the brink, willie. >> yeah. katty, that's the bottom line here, which is that the white house and the president, president biden are saying, sure, we're open to a summit to avert a war, but it is contingent on you not going into