Senator, United States Senate, District Sr, 2011-present

Member, Congressional Bicameral High-Speed & Intercity Passenger Rail Caucus, present

Candidate, United States Senate, Connecticut, 2022

Attorney General, State of Connecticut, 1990-2011

Senator, Connecticut State Senate, District Sr, 1987-1990

Representative, Connecticut State House of Representatives, 1984-1987

Member, Commission on Security and Cooperation in Europe

Member, Committee on Armed Services

Member, Committee on Homeland Security and Governmental Affairs

Member, Committee on the Judiciary

Chair, Permanent Subcommittee on Investigations

Member, Special Committee on Aging

Member, Subcommittee on Airland

Member, Subcommittee on Antitrust, Competition Policy and Consumer Rights

Member, Subcommittee on Government Operations and Border Management

Member, Subcommittee on Human Rights and the Law

Member, Subcommittee on Oversight, Agency Action, Federal Rights and Federal Courts

Member, Subcommittee on Personnel

Chair, Subcommittee on Privacy, Technology, and the Law

Member, Subcommittee on Readiness and Management Support

Member, Subcommittee on Seapower

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

Member, Subcommittee on The Constitution

Member, Veterans' Affairs and The Military

Member, Bicameral Congressional Arthritis Caucus, present

Member, Committee on Aging, United States Senate, present

Member, Committee on Armed Services, United States Senate, present

Member, Committee on Veterans' Affairs, United States Senate, present

Member, Committee on the Judiciary, United States Senate, present

Member, Congressional Coalition on Adoption, present

Member, Congressional Fire Services Caucus, present

Member, Congressional General Aviation Caucus, present

Member, Congressional Veterans’ Jobs Caucus, present

Member, Defending Social Security Caucus, present

Member, Senate Caucus to End Human Trafficking, present

Member, Senate Cultural Caucus, present

Member, Senate Fuel Cell and Hydrogen Energy Caucus, present

Member, Senate Law Enforcement Caucus, present

Member, Senate National Guard Caucus, present

Member, Senate Oceans Caucus, present

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

Former Member, Committee on Commerce, Science, and Transportation, United States Senate

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

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

Former Member, Privacy, Technology and the Law Subcommittee, United States Senate

Former Member, Subcommittee on Communications, Media, and Broadband

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

Former Member, Subcommittee on Cybersecurity

Former Member, Subcommittee on Immigration, Citizenship, and Border Safety

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

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

Former Member, Subcommittee on Personnel, United States Senate

Former Member, Subcommittee on Science, Oceans, Fisheries, and Weather, United States Senate

Former Member, Subcommittee on Security, United States Senate

Former Member, Subcommittee on Space and Science

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

Former Ranking Member, Subcommittee on The Constitution, United States Senate

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

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

Former Aide, United States Senator Daniel P. Moynihan

United States Attorney, State of Connecticut, 1977-1981

Sergeant, United States Marine Corps Reserves, 1970-1976

Administrative Assistant, United States Senator Abraham A. Ribicoff, 1975-1976

Law Clerk, Justice Harry A. Blackmun, United States Supreme Court, 1974-1975

Former Law Clerk, Judge Jon O. Newman, U.S. District Court of Connecticut, 1973-1974

White House Aide, 1969-1970

Former Editorial Chair, The Harvard Crimson

Former Editor-in-Chief, Yale Law Journal

Member, Volunteer Counsel, National Association for the Advancement of Colored Member (NAACP), People Legal Defense Fund, 1981-1986