vehicles and of course aircraft. all defenders of ukraine know that. all defenders of mariupol know that. thousands of people know that. citizens, civilians who are dying there in the blockade. the united states knows that. all european politicians know. we told everyone. and this should be known as soon as possible by as many people on earth as possible. so that everyone understands who and why we were simply afraid to prevent this tragedy. >> here is what officials in ukraine are now saying. that at least 136 children died in this country since the war began. nearly half of them in kyiv alone. just this week, russian shelling killed a 9-year-old and 11-year-old and a 13-year-old. and tonight the white house is trying to defuse comments made by president biden in poland earlier today, comments that sent shock waves throughout europe and apparent call for regime change in russia. u.s. official scrambled to add nuance to the president's words. but they came from a man who has