The topic is of interest to me only to the extent that religion is often used as a tool for promoting nationalism (which is a religion unto itself in any case) and war-mongering (which writers such as Laurence Vance have covered quite well).
Vallier begins his assessment:
…I begin by contrasting my approach with three more familiar alternatives: I term these the libertarian, religious conservative and secular progressive views about religion in politics.
The topic as introduced by Vallier interests me little, except for his statements regarding libertarian views on the topic and his introduction of Murray Rothbard's views (or as Vallier complains, lack of views) on the topic.
Given the venue, I begin by assessing the libertarian approach, or more accurately, what I see as libertarians' lack of an approach to religion in politics.