As I ponder why the USA is currently politically divided, I think I have a too-easy, "capsule" answer (a propos, see the video).
Some people, the least economically fortunate, admire billionaires (Trump supporters), while others, more economically fortunate, hate/mistrust billionaires (Sanders supporters).
Such is, far too simply put, the ironic "polarization/fracture" in the current USA electoral climate.
As for Hillary, I can only think of the joke: What did the two lawyers call their daughter? Sue.