"Who does not see that the same authority which can establish Christianity, in exclusion of all other Religions, may establish with the same ease any particular sect of Christians, in exclusion of all other Sects? - James Madison
If government gets into the business of deciding what is a religion and what is not, or what is a favored religion and what is not, then what is to prevent some future Democrat administration from defining evangelical Christianity as an ideology and not a religion?