for the and then what question, okay? we abandon ukraine, then what? what do you do? they don't have a good answer for that. >> quick final question, if i might. is the key here for president biden to sell the american people on this being or involving a vital u.s. interest? >> yes. he has to remind the american people why it matters. he has to also, though, reassure the american people that there is a strategy that will lead to success. it can't nearly be this is important. the ukrainian army can prevail, and i think that second one is where he has the most work to do. >> i am sure that vladimir putin is studying the numbers that are used, as you say in the topper, about that decline in american support. dr. fever, thank you so much, i really appreciate your expertise.