What you are seeing in the GOP today, generally, is what I consider to be the final stand of the Tea Party, Birthers and everyone else who has taken the party so far right, and kicked out those moderate "Ford" Republicans that still stuck around after they got decimated by the Reagan wave. 

Literally, this election cycle is their Waterloo, as they now have a candidate that espouses their views and down-ticket candidates that are all on the same page - and they are all going to war with the liberals and moderates. What the Tea Party is about to find out is, upon the defeat of Trump, Ms. Stenger and others who espouse a racist, sexist, bigoted philosophy is that it will be an absolute defeat. That will, in turn, give more moderate voices in the Republican Party enough power to truly oust the Tea Party/Freedom Caucus/Sean Hannity/Breitbart pols from the mainstream and relegate their entire movement to the trash heap of political history.