George Neumayr nails it. Key paragraph:
Ryan’s hesitation represents one of the last gasps of the old-guard moderate Republicans. Had he run against Trump in the primaries, he would have gone down to embarrassing defeat. It took Trump to expose these “inclusive” Republicans as entitled and exclusive—an insular cabal presiding not over a populist big tent but a cliquish and fast-fading country club.
"Entitled and exclusive." Sounds right to me. When the insiders choose the nominee, the rest of us are supposed to fall in line. When the rest of us choose the nominee, as we did this year, the insiders balk. Heads I win; tails you lose.
