With the scare quotes, I was drawing a distinction between the pre-Trump Republican establishment [meaning the incumbent Republican leadership along with the ideas that they stumped on to get into that position], and Trump. Trump is very different than the pre-Trump Republican establishment, and they clearly preferred other candidates (principally, Marco Rubio).

There were clearly vast distances between the Pre-Trump Republican establishment, and the Republican electorate, and so it would make sense for the post-Trump Republican establishment to move in Trump's direction. That process is currently nascent, and the differences have, if reports are anything to go on, yet to have shaken out.

Because of the way Trump operates, and because of the populist shift of the Republican electorate, I'd expect Trump to win most of the internal battles on spending. The winds are at his back. He will probably also flip many Republicans who previously positioned themselves as staunch fiscal hawks.