Trump, by disrespecting the state Republican parties in the states he’s won, smacked a huge target onto the backs of those valet-chosen silk suits he wears.

Trump has been inattentive to the mechanics of voter identification and field persuasion. His brand of politics has allowed him to run roughshod over his opponents by sheer force of personality. He has spit in the face of the national party and has publicly cast aspersions on state parties, too, accusing them of stacking debate audiences with donors to favor his opponents. This plays well with his angry electorate, but it comes with a huge price: In order to make sure that his delegates remain loyal, he needs the state parties to cooperate with him.

“I warned them,” a state GOP chairman messaged me last night. “It may be too late.”

Instead of calling all 168 members of the Republican National Committee last year or forging at least quiet alliances with state chairs, Trump’s “campaign continually harassed and cajoled dozens of state chairs into staying silent, holding the loss of business relationships or donors over their heads,” the chair said.

Two other GOP chairs confirmed this assessment in separate messages to me last night.