The book that I would recommend is one of the best political biographies ever, Robert A Caro's The Years of Lyndon Johnson. My film would be The Godfather. And for the TV box set, no contest: it would have to be the incomparable West Wing.
That's the choice of someone who's a serious student of power and its workings. But good students don't always become good practitioners. Nevertheless, for what it's worth (not a lot, I would think), she goes up in my estimation. Anyone who appreciates Caro's staggering achievement - his series is the best biography of anyone, ever - has something going for them (Banana Boy's choice of the Gruffalo, not so much).