the dunbas region. are we ready to acquiesce in this? what president biden has done teed, you laid it out, showing that the united states and its allies, which is serious in resisting it. ukraine has been an independent country for 30 years. it has agency here, sovereignty. and the united states is not in any kind of position to bargain away europe on ukraine security. the biden administration is certainly framing things in the way that one would expect and hope and anticipate in responding to this. >> fiona hill, former top russia expert on the national security council, the author of "there is nothing for you here: finding opportunity in the 21st century," of every book written by anybody in the trump administration is the one definitely to read. thank you for your time and insight tonight. it's a real honor to have you here. >> thanks, rachel. thank you. > got much more to come here tonight. stay with us.