Rodham by Curtis Sittenfeld

'Awfully opinionated for a girl' is what they call Hillary as she grows up in her Chicago suburb. Smart, diligent and a bit plain, that's the general consensus. Then Hillary goes to college, and her star rises. At Yale Law School she continues to be a leader - and catches the eye of driven, handsome and charismatic Bill. But when he asks her to marry him, Hillary gives him a fire No. The rest, as they say, isn't history. How might things have turned out for them, for America, for the world itself, if Hillary Rodham had really turned down Bill Clinton?