Felipe Sierra is director of the division of aging biology at the National Institute on Aging.

Ilia Delio is a theologian and writer who is interested in the intersection of faith and science. She is a Franciscan sister.

Saffet Abid Catovic is a Muslim environmental leader. He co-founded Green Muslims of New Jersey and helped launch the Islamic Society of North America’s Green Masjid Task Force. In 2018, he shared his efforts to offset the carbon footprint of his pilgrimage to Mecca with Sojourners. Imam Catovic serves as Washington office director for the […]

Emily Wirzba is a legislative representative on sustainable energy and the environment with the Friends Committee on National Legislation, a nonpartisan, Quaker organization.

The organization Green Muslims seeks to inspire Muslims to educate themselves about the environment and be stewards of the Earth. It works with mosques and Muslim student associations across the U.S.

Elizabeth Sherman is an assistant professor of American politics at American University in Washington, D.C. She recently wrote an analysis of John McCain’s legacy, exploring his views on the relationship between religion and politics, for The Conversation.

Charlie Black was an instrumental part of John McCain’s 2008 presidential campaign, serving as senior political adviser and meeting with evangelical Christian leaders on McCain’s behalf. He is now chairman of Prime Policy Group, a public affairs firm.

Gary Bauer is president of American Values, a conservative advocacy organization, and a commissioner for the U.S. Commission on International Religious Freedom. He regularly comments on what’s happening in the White House and, in 2000, ran against John McCain for the Republican presidential nomination. 

Samuel D. Brownback is the U.S. ambassador-at-large for international religious freedom. He previously served as governor of Kansas, as well as a U.S. representative and senator.