Science Debate 2008, currently ScienceDebate.org, was the beginning of a grassroots campaign to call for a public debate in which the candidates for the U.S. presidential election discuss issues relating to the environment, health and medicine, and science and technology policy. In 2008, the effort was co-chaired by U.S. House representatives Vernon J. Ehlers and Rush D. Holt, Jr., and the steering committee includes Chris Mooney, Matthew Chapman, Arne Carlson, Lawrence Krauss, Sheril Kirshenbaum, John Rennie, and Shawn Lawrence Otto.