• Jim McGovern, Elizabeth Warren, Harriette Chandler, John Mahoney
• Federation of American Scientists, Council for a Livable World, Center for Arms Control and Non-Proliferation, Union of Concerned Scientists
• Massachusetts Audubon Society, Environment Massachusetts, Clean Water Action, 350 Central Mass
• Opensecrets
• The Ploughshares Fund, Amnesty International, Privacy Rights Clearinghouse, Committee of Concerned Scientists
• Center for American Progress, VerifiedVoting, Democrats for America's Future
• American Prospect, The Nation, The Progressive

Please send comments and corrections to Harvey Gould, hgould@guessu.edu.