Vaughn E. James is a law professor at Texas Tech University. He wrote the article “Reaping Where They Have Not Sowed: Have American Churches Failed to Satisfy the Requirements for the Religious Tax Exemptions?” for the Catholic Law Review (2004).

Natalie Davis is a political science professor at Birmingham-Southern College in Alabama. She is an expert on religion and taxes.

Robert Wineburg is the Jefferson Pilot Excellence Professor of social work at the University of North Carolina-Greensboro who has looked at IRS investigations of churches for political activities related to elections. He is the author of the Faith-Based Inefficiency: The Follies of Bush’s Initiatives, and he has been writing comprehensively about faith-based politics and social services […]

David A. Brennen is the dean of University of Kentucky College of Law. He co-wrote the book The Tax Law of Charities and Other Exempt Organizations: Cases, Materials, Questions and Activities (West Group Publishing, 2003).

Frances Hill is a University of Miami law professor and an expert on the political rights of tax-exempt organizations. She has said tax-exempt organizations can be passionate about politics without losing their tax-exempt status.

Richard Pomp is a law professor at the University of Connecticut and a tax expert.

J. Bryan Hehir is the Parker Gilbert Montgomery Professor of the Practice of Religion and Public Life at the Hauser Center for Nonprofit Organizations at Harvard University’s John F. Kennedy School of Government. He is an expert on religion and American society.

William Mumma is president and general counsel of the Becket Fund for Religious Liberty. Organization officials have said preachers should be free to say whatever they want without threatening their churches’ tax-exempt status.

Focus on the Family is a conservative group that supports churches’ right to campaign. The founder of this organization is James C. Dobson who was also former chairman and president.