Robert D. Tollison, professor of economics at Clemson University in Clemson, S.C., has expertise in the economics of religion. His books include, as co-author, Sacred Trust: The Medieval Church as an Economic Firm (Oxford University Press, 1996). He has co-written a draft manuscript, Economics and Christianity.

Nikki Randhawa Haley is a Republican who attends both a Sikh and a Methodist church. She is the Governor of South Carolina.

The Pluralism Project at Harvard University offers a state-by-state search engine for religious communities.