In a world that seems to be divided between neoliberal orthodoxy and identitarian dogmas, it is possible to miss the waning presence of traditional social democracy. Born of the radical Left in Marx’s own time, social democrats worked, sometimes with remarkable success, to improve the living standards of working people by accommodating the virtues of capitalism. Today, that kind of social democracy—learned at home from my immigrant grandparents and from the late Michael Harrington, one time head of the American Socialist Party—is all but dead. This tradition was, in retrospect, perhaps too optimistic about the efficacy of government. Nevertheless, it sincerely sought to improve popular conditions and respected the wisdom of ordinary people.