Former Deputy Majority Whip, Maryland State House of Delegates

Senator, Maryland State Senate, District 26, 2019-2023

Deputy Majority Whip, Maryland State Senate, 2019-2023

Member, County council, Prince George's County, District 8, 2010-2018

Candidate, Maryland State Senate, District 26, 2006, 2018

Delegate, Maryland State House of Delegates, 1995-2007

Former Member, Subcommittee on Education, Maryland State House of Delegates

Former research biologist, management analyst, equal employment opportunity specialist, United States Department of Agriculture

Member, Commission on Environmental Justice and Sustainable Communities, 2019-present

Member, Local(Video Lottery) Development Council, Prince George's County, 2019-present

Member, Metropolitan Development Policy Committee of Metropolitan Washington Council of Governments, 2000-present

Member, Board of Trustees, Johnson C. Smith University

Member, NAACP

Member, Pi Sigma National Honor Society

Member, Prince George's Volunteer Action Center

Co-Chair, Task Force on the Prince George's County Transfer Tax Rate, 2000-2001

Member, Task Force on Multiracial Designations, 1997

Member, Task Force on Personal Care, 1996-1997

Member, United States 301 South Corridor Transportation Study Task Force, 1994-1996

President, Apple Grove-Squire Woods Civic Association, 1993-1994

Member, Board of Directors, Big Brothers and Big Sisters Organization, 1980-1984

Member, Housing Commission, Gainesville, Florida, 1970