“If both of these authors are correct, then we have two political parties that aren’t really about anything. They’re competing fiercely and inarguably offering Americans some kind of choice – only someone truly out on a limb would argue that there is no difference at all between having Trump or Hillary in the White House – but they’re more like two sports teams than opposing political parties at this point. How can you have two groups locked in fierce competition when neither one of them really stands for or is about anything coherent? Easy: you frame things as the politics of identity.”