Senator, United States Senate, Maryland, 2016-present

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

Candidate, United States Senate, Maryland, 2022

Chair, Democratic Senatorial Campaign Committee, United States Senate, 2017-2019

Representative, United States House of Representatives, Maryland, District 8, 2002-2016

Chair, Democratic Congressional Campaign Committee (DCCC), 2007-2011

Senator, Maryland State Senate, 1995-2002

Delegate, Maryland State House of Delegates, 1990-1994

Member, Committee on Appropriations

Member, Committee on Banking, Housing, and Urban Affairs

Member, Committee on Foreign Relations

Member, Committee on the Budget

Member, Subcommittee on Africa and Global Health Policy

Member, Subcommittee on Commerce, Justice, Science, and Related Agencies

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

Member, Subcommittee on Economic Policy

Member, Subcommittee on Europe and Regional Security Cooperation

Member, Subcommittee on Financial Institutions and Consumer Protection

Chair, Subcommittee on Financial Services and General Government

Member, Subcommittee on Interior, Environment, and Related Agencies

Member, Subcommittee on Legislative Branch

Member, Subcommittee on National Security and International Trade and Finance

Member, Subcommittee on State, Foreign Operations, and Related Programs

Member, Subcommittee on Transportation, Housing and Urban Development, and Related Agencies

Vice Chair, House Renewable Energy and Energy Efficiency Caucus, present

Former Member, Agriculture, Nutrition and Forestry Committee, United States Senate

Former Ranking Member, Budget Committee, United States House of Representatives

Former Member, Environment and Public Works Committee, United States Senate

Former Member, Housing, Transportation, and Community Development Subcommittee, United States Senate

Former Member, Subcommittee on Commodities, Risk Management and Trade, United States Senate

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

Former Member, Subcommittee on Housing, Transportation, and Community Development

Former Member, Subcommittee on Legislative Branch, United States Senate

Former Member, Subcommittee on National Security and International Trade and Finance, United States Senate

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

Former Member, Subcommittee on Nutrition, Agricultural Research, and Specialty Crops, United States Senate

Former Ranking Member, Subcommittee on Rural Development and Energy, United States Senate

Former Ranking Member, Subcommittee on Securities, Insurance, and Investment, United States Senate

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

Former Attorney, Arent, Fox, Kintner, Plotkin and Kahn

Senior Legislative Advisor, Office of Governor William Donald Schaefer, 1989-1991

Staff Member, Foreign Relations Committee, United States Senate, 1987-1989

Legislative Assistant, Office of Senator Charles Mathias Jr., United States Senate, 1985-1987

Vice Chair, Democratic Task Force on Tax Policy and the Budget, present

Former Member, American Bar Association

Former Member, Advisory Board, CeaseFire Maryland

Former Co-Chair, Congressional Chesapeake Bay Watershed Task Force

Former Member, Kensington Citizens Association

Former Member, Maryland State Bar Association

Member, Montgomery County Bar Association

Former Councilor, The Atlantic Council

Superdelegate, Democratic National Convention, 2016

Member, Advisory Board, After-School Opportunity Programs, 1999-2002

Member, Task Force on Regulatory Reform, 1999-2001

Member, Task Force to End Smoking in Maryland, 1999

Astrological Sign:

Capricorn

Awards:

Top award from the Maryland League of Conservation Voters for his work on environmental issues
"Congressional Champion for Real and Lasting Change" award from Save the Children
"Outstanding Legislative Leadership Award" from the Mattie Miracle Cancer Foundation for his work on childhood cancer
"Legislator of the Year" award from Montgomery County Chamber of Commerce
"Champion of Working Families" award from Progressive Maryland
"Distinguished Service" award from the Committee for Education Funding
"Champion Award" from the Veteran Institute for Procurement for his work to help veteran-owned businesses