I saw what happened to Romney in 2012 on immigration. He started out with a good policy, written largely by Kris Kobach. Once Romney became the presumptive nominee, he was called to a meeting on Long Island with the big donors. They told him to soften his stance on immigration and illegal aliens. He did.
Will Trump cave? He has softened his stance today on Muslims saying it was only a suggestion. Will he do the same thing on immigration? Will he pick up the CoC line that we need more skilled foreign workers? Will he modify his stance on the Wall and the deportation of illegal aliens? This is going to be a real test for Trump.
I don't think it is a good thing that Ryan is milking this for all it is worth. He opines that it is a good first step. This is the power position placing Trump as the supplicant trying to win favor with the GOPe. Not a good thing. The longer this goes on, the worse it is for Trump and more importantly, his stance on the issues.
Trump got to the dominant position by being the outsider taking on the GOPe. You've gotta dance with the one that brought you. Don't go wobbly on us now, Donald.
Ryan matters less and less as the other members of the house fall into line.
Each house member that endorses Trump is another tick tock in Ryan’s fading leverage (if any)