The crowd in the Inglewood High School auditorium had lost its patience with the loud white man in the sweat-stained Make America Great Again hat.
Arthur Christopher Schaper sat among a mostly African American crowd at Rep. Maxine Waters’ town hall meeting last month, calling the Los Angeles Democrat “the crazy black lady” and heckling her for his Facebook Live audience. People begged him to stop talking over “Auntie Maxine.” He said he was being discriminated against.
“God bless Donald Trump!” he shouted.
“Shut up, Arthur, you Nazi!” someone retorted.
As the police escorted him out with the crowd cheering, Schaper held up his phone, video rolling. The next day, he...