How far may Americans properly rely on their religious beliefs when they make and defend political decisions? For example, are ordinary citizens or legislators doing something wrong when they consciously allow their decisions respecting abortion laws to be determined by their religious views? Despite its intense contemporary relevance, the full dimensions of this issue have until now not been thoroughly examined. represents the first attempt to fill this gap. Beginning with an account of the basic premises of our liberal democracy, Greenawalt moves to a comparison between rational secular grounds of decision and grounds based on religious convictions. He discusses particular issues such as animal rights and abortion, showing how religious convictions can bear on an individual's decisions about them, and inquires whether reliance on such convictions is compatible with liberal democratic premises. In conclusion, he argues that citizens cannot be expected to rely exclusively on rational, secular grounds.