Organization Democratic Party

Columbia University

Council of Economic Advisers

World Bank

United States Navy

United States House of Representatives

United States Senate

American Veterans Committee

Americans for Democratic Action

Republican Party

Screen Actors Guild

Hollywood Independent Citizens Committee of the Arts, Sciences and Professions

U. S. House of Representatives

U.S. Homeland Security Advisory Council

The Church of Jesus Christ of Latter-day Saints

American Program Bureau

U.S. House of Represenatives

U.S. Senate

Vermont Progressive Party

Socialist Party USA

Liberty Union (Party, 1970-77)

Bracewell & Guiliani

Guiliani Partners

United States Department of Justice

Republican Party

City of New York

Princeton University

American Historical Association

State of New Jersey

U.S. Presidency

US Army (drafted | 1944-1948)

Frank Sinatra School of the Arts, New York (founder | 2001)

U.S. Senate

United States Army

Bennington College

Indiana University, Bloomington

University of Vermont

American Association for the Advancement of Slavic Studies

Vermont State Senate

American Historical Association

Vermont Historical Society

Crooked Media

United States Army

WABC

Bryan Cave

Robinson, Silverman, Pearce, Aronsohn, and Berman

U.S. Senate

US Marine Corps

National Rifle Association

U.S. Senate

American Academy of Arts and Letters (Literature ∙ 1908)

National Organization for Women

National Gay Task Force (later National Gay and Lesbian Task Force)

Lavender Menace

National Organization of Italian American Women

National Italian American Foundation

Institute of Politics, John F. Kennedy School of Government, Harvard University

US Army Air Force (1942-1945)

United States Navy

Harry S. Truman administration (1946-1950)

John F. Kennedy administration (1961-1963)

Lyndon B. Johnson's cabinet (1968-1969 | Secretary of Defense)

Lyndon B. Johnson administration (1963-1969)

Jimmy Carter administration (1980-1981)

Windham College

United Nations

Kurdistan Regional Government

US Senate (Committee on Foreign Relations)

National War College

Vermont State Senate

Center for Arms Control and Non-Proliferation

US State Department (ambassador | Croatia)

United States Department of State

United States National Security Council

Bill Clinton administration (1997-2001)

Barack Obama administration (2009-2017)

Democracy for America

McKenna, Long & Aldridge

American Medical Association

US Senate

Sigma Nu

Bill Clinton administration (1996-1999)

State of Louisiana

U.S. Senate

Planned Parenthood

CityMeals-on-Wheels

Amnesty International

Childhelp, USA

United States Navy

State of Alabama

Confederate States of America

Confederate States Army (colonel)

United States Army (brigadier general)

Alabama House of Representatives

United States Congress

15th Alabama infantry regiment

Black Lives Matter

Democratic Socialists of America

Skull and Bones

Brown Brothers Harriman & Co.

The Business Council (Chairman)

American Historical Association (president | 1934)

Franklin D. Roosevelt administration (1933-1937)

Maine House of Representatives

Secular Coalition for America

Richard Dawkins Foundation for Reason and Science

Maine State Bar Association

National Institute for Civil Discourse

Richardson Center for Global Engagement (founder)

U.S. Senate

Americorps

America’s Promise

Student Federalists

U.S. Civil Rights Commission

University of Notre Dame

State University of New York, Old Westbury

Bryn Mawr College

Captain, Tennessee Volunteer Infrantry (Spanish-American War)

Planned Parenthood of Colorado

U.S. House of Representatives

League of Women Voters

Common Cause

Association of American Publishers

Federal Communications Commission (Chair)

United States Army (Sgt.)

Sidley Austin LLP

Bipartisan Policy Center (Co-Chair of the Housing Commission)

Univision (COO)

National League of Cities

NAACP

Democratic National Committee

United States Post Office Department

Republican Party

U.S. Senate

U.S.Air Force