Other members include: John C. Tuck, who served as under secretary of the U.S. Department of Energy responsible for energy, science and the environment; Keith Kennedy, who served as majority staff director of the Senate Committee on Appropriations; JC Sandberg, who joined Baker Donelson after serving for six years as counsel to the Senate Committee on Environment and Public Works; and senior public policy advisor Scott Campbell, an internationally recognized energy policy consultant and counter-terrorism advisor.