- Jim McGovern, Elizabeth Warren, Harriette Chandler
- 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
- 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, firstname.lastname@example.org.
Updated 10 November 2017