Really interesting conversation.    But I am suprised that you think Trump has to dump established Republicans.    Republicans now control both houses of Congress and dominate the Governors position.    Gerrymandering or not, that political structure knows that they have had success.   It's not going to be Trump party in the near future.     Democrats are the one claiming Republican as Trumps party.......for obvious reasons.    

The election is still pretty fluid, I'm not writing off Trump, not when Clinton  has been 'branded'  so negetively by Republicans over the years.