Joe Biden is well known as the kind of guy who will talk your ear off, whether you're a head of state or an Average Joe on the campaign trail. But Evan Osnos, New Yorker staff writer and author of "Joe Biden: The Life, The Run and What Matters Now," thinks that reputation may be outdated. "Here he is in his eighth decade when a lot of people are, frankly, in more of a broadcasting mode than a listening mode, he's actually become a more attentive listener." Despite one of the longest political careers in modern American history, there remains more to Joe Biden than may meet the eye. Osnos spoke with Ian Bremmer on GZERO World.

Watch the GZERO World episode: What you still may not know about Joe