Professor; Director of the Boisi Center for Religion and American Public Life
The American Catholic Revolution: How the Sixties Changed the Church Forever. New York: Oxford University Press, 2010.
Anti-Catholicism: The Last Acceptable Prejudice? New York: Crossroad Press, 2003.
Catholics and American Culture: Fulton Sheen, Dorothy Day, and the Notre Dame Football Team. New York: Crossroad, 1999. Winner of the AJCU/Alpha Sigma Nu Award for Outstanding Work in Theology for 1999-2001.
World Religions: A Sourcebook (with Richard Viladesau). Metuchen, NJ: Paulist Press, 1993.
Foundations of Theological Study (with Richard Viladesau). Metuchen, NJ: Paulist Press, 1991.
Charles Augustus Briggs and the Crisis of Historical Criticism. Minneapolis: Fortress Press, 1990.