Donald Trump was elected president of the United States. Over the next year I made three trips back to Louisiana to see how the people I’d come to know over the previous half decade were feeling. They were ecstatic. All those I profiled in the book and most of their kin, friends, and fellow parishioners had voted for Trump. “Mornings I have to pinch myself,” Mike Schaff wrote in an e-mail a few months after the election, “to make sure it really happened.”