American Association of Law Libraries; American Library Association; American Society of News Editors; Association of Alternative Newsmedia; Association of Research Libraries; Bill of Rights Defense Committee; Center for Science and Democracy at the Union of Concerned Scientists; Citizens for Responsibility and Ethics in Washington; Common Cause; Data Coalition; Defending Dissent Foundation; Demand Progress; Free Government Information; Government Accountability Project; OpenTheGovernment.org; Project On Government Oversight; R Street Institute; Society of American Archivists; Sunlight Foundation(3/8/2016)
American-Arab Anti-Discrimination Committee; American Civil Liberties Union; American Library Association; Bill of Rights Defense Committee; Center for Financial Privacy and Human Rights; Center for Science and Democracy at the Union of Concerned Scientists; Constitutional Alliance; Defending Dissent Foundation; Demand Progress; Drum Majors for Truth; Freedom of the Press Foundation; Golden Badge; Government Accountability Project; James Madison Project; National Judicial Conduct and Disability Law Project, Inc.; National Whistleblower Center; The Niskanen Center; OpenTheGovernment.org; PEN American Center; Project On Government Oversight (POGO); Public Citizen; R Street Institute(1/6/2016)