ukrainian/russian border, is there any hope of a diplomatic solution here or resolution? >> well, i think the biden administration is exactly right. they're going to continue to work every possible avenue and make it clear that diplomatic offramps are always available, that vladimir putin until he actually has tanks rolling in or troops going in, there's still an opportunity to avoid what will be a catastrophic war and will result in tens of thousands of people potentially dying. this is a war of choice, not a war of necessity. but it's important that the united states and the international community make it clear no country can redraw the borders of another country by force. we fought two world wars. nato was designed in response to fears of russian aggression. it's a defensive organization. and so it's important that this conduct not be permitted. i think the president has worked very closely with our allies, with our nato allies, our european allies to be sure everyone is on the same page,