Luke Goodrich is vice president and senior counsel for the Becket Fund for Religious Liberty, a firm that specializes in religious freedom cases. He is also an adjunct professor of constitutional law at the University of Utah.

Marc DeGirolami is a law professor and associate director of the Center for Law and Religion at St. John’s University in Queens, New York. He is the author of The Tragedy of Religious Freedom.

Mary Anne Case is a law professor at the University of Chicago. She teaches on a variety of legal topics, including sexual discrimination, religious freedom, constitutional law and feminist jurisprudence.

Pierre Brechon is an emeritus professor of political science at the Grenoble Institute of Political Studies in France. He co-edited European Values: Trends and Divides Over Thirty Years, which was published in 2017.

Lori G. Beaman is a professor of classics and religious studies at the University of Ottawa. She is principal investigator for the Religion and Diversity Project, which explores how to promote peace in religiously diverse societies.

Nicolas M. Somma is an associate professor of sociology at the Pontifical Catholic University of Chile. He is co-author of the book Links, Beliefs and Hopes: The Social Cohesion of Latin Americans and a 2017 article on religious change in the region.

Gary Bouma is an emeritus professor of sociology at Monash University in Melbourne, Australia, where he studies religious diversity, pluralism, terror and the relationship between religion and public policy. He is the author or co-author of more than two dozen books, including Australian Soul: Religion and Spirituality in the Twenty-First Century, and an Anglican priest.

Conrad Hackett is Pew Research Center’s associate director of research and senior demographer. Contact him through Anna Schiller.

Ryan Burge studies the intersection of religious beliefs and political behavior and is an expert on survey methodology. He has spoken to the media on a range of topics, including religious affiliation and the rise of the “nones.” He teaches political science at Eastern Illinois University.