Thomas P. Rausch, SJ, is the T. Marie Chilton Professor of Catholic Theology at Loyola Marymount University in Los Angeles. A specialist in ecclesiology, he has published twenty books and numerous articles and has long been active in ecumenism. e co-chairs the Los Angeles Catholic/Evangelical Committee and the Theological Commission for the Archdiocese. From 2010 to 2014 he was a consultor to Jesuit Superior General Father Adolfo Nicholás for ecumenical affairs.