“Political theology” as discourse came back into circulation almost a hundred years ago thanks to the efforts of Carl Schmitt. In Germany, at least, its feasibility as a theological category was promptly booted out of play by his close friend Erik Peterson (d. 1960) in an oft-cited – but less often read – monograph on “Monotheism as a Political Problem” (1935). That and other writings of Peterson’s are now available in English translation, most of them for the first time, in my edition of Theological Tractates (Stanford University Press, 2011). Peterson reveals himself to have been an “anti-political” theologian who yet possessed an acute sense of the political dimension of subjects as diverse as liturgy, mysticism, ecclesiology, and martyrdom.