They’re gathering by the thousands. They’re growing fast. They believe that Democrats are possessed by demons—and that Donald Trump must be president again at any cost.

The reasoning was simple: Each of the Christians assembled would soon feel a call to become a poll watcher or to knock on doors or to organize their church—to take part in some act that would aid the Republican presidential candidate. And that act would keep them safe, the prophet said, because God would not call them home before they had completed the task He had given them.