[jlos]

Religion and politics have always been mixed. Prior to the founding of the U.S., religious and political identity was one and the same. Which is why heresy was often treated in civil courts as sedition.

Even when the U.S. introduced the concept of seperation of church and state, it was for the explicit purpose of promoting religion. The U.S. founders axiomatically assumed religion was necessary for morality and self-governance and believed that a free market of religions (as opposed to state religion) would lead to increased religiosity [0]. And, interestingly, it seems they were right as the countries with state churches have all seen massive religious decline while the U.S. is one of the most religious countries in the world (especially when you filter out the elite class, who as secular as Europeans).

The danger is that politicians co-opt religious institutions to help legitimize their regime and bolster support. Marsh's biography of Bonhoffer describes exactly this process.

[0] George Washington's Final Address: https://www.presidency.ucsb.edu/documents/farewell-address "Of all the dispositions and habits which lead to political prosperity, religion and morality are indispensable supports. . . Let it simply be asked, Where is the security for property, for reputation, for life, if the sense of religious obligation desert the oaths which are the instruments of investigation in courts of justice? And let us with caution indulge the supposition that morality can be maintained without religion. Whatever may be conceded to the influence of refined education on minds of peculiar structure, reason and experience both forbid us to expect that national morality can prevail in exclusion of religious principle."