Separation of Church and State

A nice reminder from Tom Toles of the problem alluded to by James Madison:

Notwithstanding the general progress made within the two last centuries in favour of this branch of liberty, and the full establishment of it in some parts of our country, there remains in others a strong bias towards the old error, that without some sort of alliance or coalition between Government and Religion neither can be duly supported. Such, indeed, is the tendency to such a coalition, and such its corrupting influence on both the parties, that the danger cannot be too carefully guarded against.

The emphasis is mine.