E.H. Carr's famous axiom that history is "an unending dialogue between the present and the past" is particularly relevant to the current state of German church history in the National Socialist era. For one, recent eruptions of Christian nationalism in Western societies have called into question the past lessons supposedly learned about the dangers of fusing Christianity with exclusionary nationalist ideology. What is more, some of the new Christian nationalists are reinterpreting history in ways that distort the meaning and message of Christians caught up in the German "Church Struggle" of the 1930s and 1940s. Over and against that, however, historians experiencing twenty-first century Christian nationalism are gaining new insights into the dynamics of that earlier "Church Struggle." Taken together, these realities suggest it might be time for a new history of the German churches in the Third Reich. Employing a kind of "critical presentism," I would argue that historians need to ask what it means to write this history in a time when, once again, Christianity, Christians, and churches are subject to ideological polarization and political manipulation and mobilization by far-right leaders, movements, and governments.