in a show of solidarity, with the ukrainian resistance. and also this week, first lady jill biden will head to romania and slovakia for a five-day trip to meet with refugees of this war. joining us now, is nbc news correspondent erin mclaugh lin in kyiv and in washington, nbc news capitol hill correspondent ali vitali, and barry mccaffrey, retired four star jen and a military analyst. let me start with you, what s the latest in ukraine, erin. all eyes on the devastated port city of mariupol, where yet another evacuation attempt was supposed to be under way. at the helm of the united nations as well as the international red cross, they were supposed to move out to one of the besieged city suburbs today to evacuate even more civilians, although there seems to be some sort of delay, and civilians have been waiting there, for hours, unclear why,