For one thing, he'd make it interesting, as he says in an interview with the New York Times' David Marchese:
Given your inclination toward politics and idealism, is there a Democratic presidential candidate who’s connecting with you? No. It’s funny. I was emailing with a friend about this topic. There are grand gestures out there to be had, and no one is going for them. We’re drowning in timidity.
I’m sure you have thoughts about what those grand gestures could be. Mm-hmm. As long as we’re crystal clear that I understand the difference between the real world and “The West Wing”?
T.B.D., but go on. Fair enough, T.B.D. Here’s what would happen on “The West Wing.” Joe Biden would say: “You know what? If it’ll get John Bolton testifying to the Senate under oath, swear me in too. I’ll answer any questions you’ve got.” Suddenly all the attention would be on him. It’s a “Mr. Smith” moment. He gets to sit in front of hostile Republican senators and show us how well he can handle them. If he did it right, if he was performing a “West Wing” script where I got to decide what everybody else says too, it propels him right to winning.
Sorkin also answers questions about his anti-heroes, the conflict beteen Abbie Hoffman and Tom Hayden, and of course, writing.