picture you're seeing next to ben, those are live pictures as the leaders arrive there in rome. so, kevin, turning to president biden, specifically, much. narrative here around this g20 has been around this idea of biden having to heal risks of allies, restore the very idea of american leadership around the world. i mean, that's a huge lift there for him. this is a subject you've written about. so, how does he go about actually doing that? >> reporter: well, he starts just by showing up. and the president is, of course, very committed to the idea of multilateralism. his presence at the summit, just the enthusiastic presence here at g20 in rome can go a long way. that's a major contrast to the former president donald trump who is often at these summits somewhat begrudgingly, before the summits, asking his aides whether he has to attend.