Ryan T. Anderson, Ph.D., researches and writes about marriage and religious liberty as the William E. Simon Senior Research Fellow in American Principles and Public Policy. He also focuses on justice and moral principles in economic thought, healthcare and education, and has expertise in bioethics and natural law theory.

Anderson is also the Founder and Editor of Public Discourse, the online journal of the Witherspoon Institute of Princeton, N.J.

Anderson’s recent work at Heritage focuses on the constitutional questions surrounding same-sex marriage. He is the author of Truth Overruled: The Future of Marriage and Religious Freedom (Regnery Books, July 2015), the first book-length response to the Supreme Court’s 2015 ruling on marriage. He is also the co-author with Princeton’s Robert P. George and Sherif Girgis of the acclaimed book What Is Marriage? Man and Woman: A Defense (Encounter Books, December 2012).

Anderson was cited by Justice Clarence Thomas in his dissenting opinion in the 2015 Supreme Court case involving state marriage laws. And Justice Samuel Alito cited him twice in his dissenting opinion in the 2013 Supreme Court case involving the Defense of Marriage Act.

Anderson has appeared on ABC, CNN, CNBC, MSNBC, and the Fox News Channel. In addition to amemorable 2013 debate about marriage on CNN’s Piers Morgan Live, his news interviews include appearances on ABC’s This Week with George Stephanopoulos, CNN’s New Day with Chris Cuomo,MSNBC’s The Ed Show with Ed Schultz, and Fox News’ Hannity.

In April, 2015, the Washington Post ran a front-page profile of Anderson, and his work has been featured in or published by major newspapers and magazines, including the New York Times, the Washington Post, the Wall Street Journal, USA Today, the Washington Examiner, National Review, the Weekly Standard and Christianity Today. It also has appeared in journals such as the Harvard Journal of Law and Public Policy, First Things, the Claremont Review of Books, the New Atlantis, Touchstone, Books and Culture, The City and Human Life Review.

Anderson’s previous positions include assistant editor of First Things; Robert Novak Journalism Fellow; and executive director of the Witherspoon Institute, where he was research assistant to Robert P. George and Jean Bethke Elshtain.

Anderson received his Bachelor of Arts degree from Princeton University, graduating Phi Beta Kappa and magna cum laude. He earned his doctoral degree in political philosophy from the University of Notre Dame, where he received his master’s degree. His research spans the natural law tradition in conversation with classical and contemporary liberalism. His dissertation, which he defended in October 2014, is titled: “Neither Liberal nor Libertarian: A Natural Law Approach to Social Justice and Economic Rights.”

Anderson, who was born in Baltimore, Md., currently resides in Washington, D.C.