In addressing the role of religion in politics and law, American political theory has strongly embraced the principle of religious equality. In this article, I explain how this principle has evolved and how it has nourished the privatization of religion and the secularization of public discourse by generating the view that public evaluations of religion are inappropriate. Under this view, religion is a private good that lacks public significance. As matters merely of private taste, matters that cannot be evaluated publicly, religious positions on political issues are not to be imposed on other citizens. I challenge this reading of the equality principle, contending that different religions and different religious arguments can and should ...