Senator, United States Senate, 2013-present

Candidate, United States Senate, 2020

Representative, United States House of Representatives, 1976-2013

Representative, Commonwealth of Massachusetts House of Representatives, 1972-1976

Member, Committee on Commerce, Science, and Transportation

Member, Committee on Environment and Public Works Committee

Member, Committee on Health, Education, Labor and Pensions

Member, Committee on Small Business and Entrepreneurship

Member, Subcommittee on Chemical Safety, Waste Management, Environmental Justice, and Regulatory Oversight

Chair, Subcommittee on Clean Air, Climate, and Nuclear Safety

Member, Subcommittee on Communications, Media, and Broadband

Member, Subcommittee on Consumer Protection, Product Safety, and Data Security

Member, Subcommittee on Employment and Workplace Safety

Member, Subcommittee on Fisheries, Water, and Wildlife

Member, Subcommittee on Oceans, Fisheries, Climate Change and Manufacturing

Chair, Subcommittee on Primary Health and Retirement Security

Member, Subcommittee on Space and Science

Member, Subcommittee on Surface Transportation, Maritime, Freight, and Ports

Member, Subcommittee on Surface Transportation, Maritime, Freight, and Ports

Member, Subcommittee on Transportation and Infrastructure

Member, Congressional Progressive Caucus, present

Former Member, Aviation Operations, Safety, and Security Subcommittee, United States Senate

Member, Commission on Security and Cooperation in Europe

Member, Congressional Biomedical Research Caucus

Co-Chair/Founder, Congressional Caucus on Alzheimer's Disease

Member, Congressional Caucus on Armenian Issues

Member, Congressional Competitiveness Caucus

Co-Founder, Congressional Cystic Fibrosis Caucus

Member, Congressional Narcotics Abuse and Control Caucus

Co-Chair/Co-Founder, Congressional Privacy Caucus

Former Member, Consumer Protection, Product Safety, Insurance, and Data Security Subcommittee, United States Senate

Former Chair, Energy and Environment Subcommittee, Energy and Commerce Committee, United States House of Representatives

Former Member, Europe and Regional Security Cooperation Subcommittee, United States Senate

Former Member, Fisheries, Water, and Wildlife Subcommittee, United States Senate

Member, Law Enforcement Caucus

Co-Chair/Founder, Non-Proliferation Caucus

Former Member, Oceans, Atmosphere, Fisheries, and Coast Guard Subcommittee, United States Senate

Co-Chair, Public Broadcasting Caucus

Former Member, Senate Foreign Relations Committee

Former Ranking Member, Space, Science, and Competitiveness Subcommittee, United States Senate

Former Ranking Member, Subcommittee on Africa and Global Health Policy, United States Senate

Former Member, Subcommittee on Clean Air and Nuclear Safety, United States Senate

Former Member, Subcommittee on Communications, Technology, Innovation and the Internet, United States Senate

Former Chair, Subcommittee on East Asia, The Pacific, and International Cybersecurity Policy

Former Member, Subcommittee on Manufacturing, Trade, and Consumer Protection, United States Senate

Former Member, Subcommittee on Near East, South Asia, Central Asia, and Counterterrorism

Former Member, Subcommittee on Security, United States Senate

Former Member, Subcommittee on State Department and USAID Management, International Operations, and Bilateral International Development

Former Ranking Member, Subcommittee on Superfund, Waste Management, and Regulatory Oversight, United States Senate

Former Member, Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety and Security, United States Senate

Former Member, Subcommittee on Transportation and Infrastructure, United States Senate

Former Member, Subcommittee on Transportation and Safety, United States Senate

Former Member, Subcommittee on Western Hemisphere, Transnational Crime, Civilian Security, Democracy, Human Rights, and Global Women's Issues

Former Member, Subcommittee on Western Hemisphere, Transnational Crime, Civilian Security, Democracy, Human Rights, and Global Women’s Issues

Chair, Select Committee on Energy Independence and Global Warming, United States House of Representatives, 2007-2010

Senior Member, House Homeland Security Committee, 2003-2009

Writer, The Huffington Post, 2005-present

Lawyer, Private Practice

Author, "Nuclear Peril", 1982

Served, United States Army Reserves, 1968-1973

Co-President, Parliamentarians for Nuclear Non-proliferation and Disarmament

Astrological Sign:

Cancer

Father's Occupation:

Milkman

Publications:

With Douglas C. Waller, Nuclear Peril: The Politics of Proliferation (Cambridge, MA: Ballinger Publishing Company, 1982)

Spouse's Occupation:

Physician and Public Health Expert