their homeland the u.s. telling american citizens to get out of ukraine and now russia tom llamas on the ground in a shaken country. the war-time president volodymyr zelenskyy tells his people to stand and fight. his rise from comedian to commander of a nation under siege also just breaking, new york state s mask mandate for school students finally set to end and the new normal our series about this new phase in the covid pandemic tonight our investigation into why americans with long covid are being denied disability coverage. what you need to know. announcer: this is nbc nightly news with kate snow good evening once again. as the skies darken in ukraine, there were air raid sirens, russian forces on the move again this morning at day break we saw evidence of just how brutal the fighting was last night the capital kyiv came under attack, but ukranian forces were able to hold off a russian takeover the biden