what role do you think his long, long history will play on the world stage here? >> as susan said, he has always been focused on the alliance. clearly he's coming into this summit with a lot of credibility built up among the allies, a real sense of the priority that he places on their strength as a group. the issue i think is what -- and phil mentioned, what are the deliverables going to be. there isn't a clear sense of what they want coming out of this other than a show of force, a show of community against russia and putin. it's going to be very challenging for biden, even with his history and this alliance, what can i come away with to show that we're getting somewhere here given what's happening in ukraine, given the continuing military alliance? >> the president on the continent of europe it slefl be significant. there's been talk maybe he will