Eric O’Keefe is here to say: whoa. The veteran Republican grass-roots activist sees a contested convention as a once-in-a-lifetime opportunity for the delegates of a private political party to assert their power. The results of the GOP primaries are hardly representative of the party’s will, Mr. O’Keefe says, because state parties have been wrecked by domineering state legislatures. Why should Republicans bow down, for instance, to the results of state-mandated open primaries that allow liberal and independent voters to bum-rush what is supposed to be a private poll?

“There’s nothing that special or even good about the government-run primary process,” Mr. O’Keefe says. Relishing the opportunity for Republican delegates to stand up for themselves, he is gearing up a campaign to educate and encourage them to exercise their prerogatives at the convention and to ignore specious insistence that they follow some imaginary obligations…

“I hate bullies, and of late I’ve come to hate them more,” Mr. O’Keefe says. “Trump means institutionalized bullying. Tyranny grows from ambitious people grabbing whatever levers of power are available.”