Most of all you get an inside look into how the whole thing works when the cable news cameras aren't rolling with three incredibly experienced and intelligent campaign wonks as your guides.
And you learn about the people involved. Don't like Bernie's politics, but learned to love the person...and his wife even more. Flipping around, think Donald Jr. will be a force to be reckoned with in the decades to come. Would vote for him for Senate right now. And those are only "for instances."
If you don't have Showtime...think about getting it for a month just to binge watch The Circus. It is that good.