Delegate, Maryland State House of Delegates, District 17, 2006-2023

Deputy Majority Whip, Maryland State House of Delegates, 2015-2023

Candidate, Maryland State House of Delegates, District 17, 2002

Member, Commission on Civic Literacy, 2007-present

Former Chair, Subcommittee on Land Use and Ethics, Maryland State House of Delegates

Former Member, Subcommittee on Local Government and Bi-County Agencies, Maryland State House of Delegates

Former Member, Subcommittee on Natural Resources, Agriculture and Open Space, Maryland State House of Delegates

Member, Joint Committee on Base Realignment and Closure, Maryland State House of Delegates, 2011-2012

Member, Education Subcommittee, Maryland State House of Delegates, 2007-2011

Member, Joint Committee on Children, Youth, and Families, 2007-2011

Member, Task Force to Explore the Incorporation of the Principles of Universal Design for Learning into the Education Systems in Maryland, 2010-2011

Member, Transportation Subcommittee, Maryland State House of Delegates, 2009-2011

Member, Ways and Means Committee, Maryland State House of Delegates, 2007-2011

Member, Finance Resources Subcommittee, Maryland State House of Delegates, 2007-2008

Legislative Analyst, Office of Intergovernmental Relations, Montgomery County, 2003-2006

Policy Analyst, Office of Policy Analysis, Department of Legislative Services, 1998-2002

Community Development Officer, Community Development Block Grant Program, Department of Housing and Community Development, 1994-1998

Research Historian, History Associates Incorporated, 1987-1991

Montgomery County Delegation, Chair, Land Use, Transportation and Public Safety Committee, 2015-present

Board of Directors, Harry R. Hughes Center for Agro-Ecology, Incorporated, 2015-present

Member, Board of Directors, Potomac Area Council, Hostelling International United States of America, 2009-present

Member, County Affairs Committee, Montgomery County Delegation, 2007-present

Treasurer, Alliance of Rockville Citizens, 2005-2007

Vice-President, Americana Centre Condominiums, 2004-2007

Chair, Alliance of Rockville Neighborhood Associations, 2003-2005