Evidently taking a signal from Roger Stone, who openly threatened to harass delegates to the GOP convention in Cleveland by publishing their hotel room numbers, Trump supporters in Colorado have been posting the names, addresses, and phone numbers of GOP officials in Colorado. They blame the officials for “rigging” the convention by creating a system last year for awarding delegates that Trump didn’t win. The fact that Trump had the same opportunity as every other candidate to win delegates at the congressional district-level conventions the state has just conducted means nothing to them. The fact that Ted Cruz conducted an...