Heading toward his October 1 debate with his Democratic counterpart Tim Walz, the rap on Republican vice-presidential nominee J.D. Vance is that he represents some of the more disturbing elements of the MAGA movement: nativist conspiracy theorists, angry man-o-sphere bros, anti-abortion ultras, fans of authoritarian Viktor Orbán, shadowy right-wing Catholic power-mongers — the whole panoply of contemporary Trump-adjacent extremism. You’d think he might want to give...