American Civil Liberties Union

American Enterprise Institute

Campaign Reform Information Center (Compilation of materials supporting this viewpoint)

Cato Institute

The Heritage Foundation

Hoover Institution at Stanford University

National Right to Life Committee

Filip Palda, How Much is Your Vote Worth? The Unfairness of Campaign Spending Limits (San Francisco: Institute for Contemporary Studies, 1994)

Bradley Smith, "Campaign Finance Regulation: Faulty Assumptions and Undemocratic Consequences" (Washington, D.C.: Cato Institute, 1995).