Rabbi Saperstein is Senior Advisor on Policy and Strategy to the Union for Reform Judaism, (the largest segment of American Jewry) and the Director Emeritus of the Religious Action Center of Reform Judaism (which he directed for 40 years) representing the Reform Jewish Movement to the U.S. Congress and Administration. In 2019-20, he served as President of Reform Jewry’s international denomination, the World Union for Progressive Judaism.

Rabbi Saperstein served int eh second Obama Administration as the U.S. Ambassador-at-Large for International Religious Freedom, carrying out his responsibilities as the country’s chief diplomat on religious freedom issues. Also an attorney, he taught seminars on Church–State law and on Jewish Law for 35 years at Georgetown University Law Center and is currently  a Distinguished Fellow at Australian Catholic University.

During his career, Rabbi Saperstein has served on the boards or executive committees of numerous national organizations including the NAACP, People for The American Way, the Leadership Conference on Civil and Human Rights, Common Cause, and the World Faiths Development Dialogue. He has overseen the environmental work of  the Reform Jewish Movement for decades, playing a leadership role in interreligious and Jewish coalitions addressing environmental issues, including serving as chair of the Interfaith Coalition on Energy and a founding board member of the National Religious Partnership on the Environment, and the Coalition on Environment and Jewish Life.

His latest book is Jewish Dimensions of Social Justice: Tough Moral Choices of Our Time and his articles  in publications ranging from The New York Times and The Washington Post to the Harvard Law Review.