Photo by Sean Rayford/Getty Images At the Republican presidential primary debate in Miami on 8 November, the 38-year-old biotech entrepreneur Vivek Ramaswamy came prepared to deliver what he imagined would be a zinger against his rival Nikki Haley. “Do you want a leader from a different generation who’s going to put this country first?” he asked. “Or do you want Dick Cheney in three-inch heels?” “They’re five-inch heels,” Haley replied to cheers from the audience. “They’re not for a fashion statement, they’re for ammunition.” The former UN ambassador’s retort was swiftly immortalised in the form of an official campaign mug,...