Mark Robinson, the lieutenant governor of North Carolina, at a rally for Donald Trump in Wilmington in September.
Photo: Allison Joyce/Getty Images

On April 3, 2018, a 49-year-old furniture upholsterer and incorrigible Facebook shitposter named Mark Robinson set fire to North Carolina politics. It happened at a city-council meeting in Greensboro, where officials were soliciting public input about a proposal to cancel an upcoming gun show on city property. Robinson’s hometown, like the rest of America, at the time was reeling from the massacre at Marjory Stoneman Douglas High…