His cultists don't give a **** about the Republican party. He is their demigod. The chosen one. The new messiah. The party is just a tool to be used to further his and their goals. Dubya and Dick Cheney are not of "his party."
This is why, if Trump loses, there'll be no surprise when Trump and his cult bolt from the GOP. They will blame the party's lack of purity for the loss. The GOP is ******. The GOP leashed themselves to the leopard that is going to eat their faces.
All true (no snark) but regardless there doesn't seem to be enough of a schism forming in the Trumpers/Traditional Republicans to do any damage.
Compared to the popular "Circular Firing Squad" metaphor for the Dems it seems the GOP can't tear itself apart no matter how hard it tries.