as heidi j, castro reports, the u. s. says he decided to close its embassy in here, due to russia's military escalation on a friday and border. an invasion, as we have said, could begin at any time, should boot and decide to order it. there would be widespread human suffering. americans in ukraine had been told to leave the country, but a core group of us diplomats will remain. they'll work from the city of leave, further west from the border with russia. despite the embassies closure, the white house says it remains actively engaged in finding a diplomatic solution to the crisis. the path for diplomacy remains available. if russia chooses to engage constructively. however, we are clear eyed about the prospects of that given the steps russia is taking on the ground in plain sight, president biden says he will not send us troops to defend ukraine in the event of an invasion. but american soldiers are standing by across the border in poland, a member of the nato alliance. real lives will be at risk ukrainian lives to be sur

j. michelle childs. it could be one of those ladies, it could come either tomorrow or as late as monday on the state of the union. >> all right, heidi thank you. over in moscow, millions of russians remain in shock over the viral assault on their brothers and sisters in ukraine. msnbc's amy's -- it's good to see you there is second day of the russian invasion there. see how that is playing out. we saw yesterday, i would say some remarkable images from a country that is tightly controlled by vladimir putin. thousands of demonstrators flooding the street. not only moscow, but st. petersburg and elsewhere. talking about the war in ukraine, millions of russians have family and friends in ukraine. they've studied in ukrainian universities. even regarding ukraine as russia's brother nation. what is the atmosphere like there today? >> this is literally an issue that hits, as you say, very close to home for a lot of russians. essentially, what we did see over the last 24 hours where protests in major cities. we're talking about st. petersburg, and moscow as well. those images that you saw on social media, in a country that you mentioned, is