“Joe Biden is gonna kick ass here because this is a normal place,” Dick Harpootlian said. A member of the South Carolina State Senate and former chairman of the state Democratic Party, Harpootlian, who has known Biden since the late 1980s, was an early supporter of his third presidential campaign. “He’s a normal guy,” he said, by way of explanation. After a long day at the statehouse listening to his fellow lawmakers filibuster, he met me for coffee at Drip on Main Street in Columbia. “Iowa is like — you watch Game of Thrones?” he asked. I said I didn’t....