Has there ever been a unified Republican "Establishment" post-GWB Presidency?

[Pennsylvania Deplorable]

The establishment was pretty united in opposing Trump during the primaries. I think they were united behind Bush, McCain, and Romney too. The GOP establishment really isn't as ideologically puritanical as people think. Just support Israel, tax cuts, invading/bombing other countries, and mass immigration while never challenging the status quo and they like you (They would have preferred a Clinton presidency to Trump, but couldn't endorse her without it being political suicide - the base would never vote for them again).

The GOP base is much more divided, but has completely different views and priorities from the establishment, which only really has 20% of republicans or so in full support of it. The base is split on foreign policy and trade, mostly either hardcore social conservative christians or simply apathetic on social issues, anywhere from "taxation is theft" to "we need more infrastructure spending," generally in favor of decreasing immigration, and absolutely unconditionally against amnesty.