Member, State Board of Education, 2009-present

Delegate, Commonwealth of Virginia House of Delegates, 2012-2016

Member, Alexandria City Council, 2003-2012

Candidate, Commonwealth of Virginia Senate, District 30, 2011

Member, Alexandria Branch of the National Association for the Advancement of Colored Poeple

Member, Alexandria City-School Coordinating Committee

Member, Alexandria Democratic Committee

Former Co-Chair, Alexandria Democratic Committee

Former Member, Alexandria Hospital Task Force

Former Co-Chair, Alexandria Taxi Work Group

Member, Alexandria's Campaign Against Adolescent Pregnancy

Member, Alexandria's Community Policy and Management Team

Co-Chair, Alexandria's High Capacity Transit Work Group

Former Co-Chair, Alexandria’s Affordable Housing Policy Task Force

Former Co-Chair, Alexandria’s Economic Sustainability Implementation Committee

Former Member, Alexandria’s Information Technology Commission

Member, Alexandria’s Local Emergency Planning Committee

Former Co-Chair/Member, Council Liaison to the Alexandria Citizen Corps Council

Former Member, Council of Governments Human Services Committee

Member, Council of Governments, Chesapeake Bay Committee

Former Member, Governor Kaine’s Start Strong Council

Alexandria Liaison, International Council for Local Environmental Initiatives

Former Member, Potomac Watershed Roundtable

Member, School Readiness Task Force

Co-Chair, The Alexandria Gang Task Force

Chair, Virginia Board of Education

Member, Virginia Municipal League Transportation Policy Committee

Member, Virginia Municipal League's Legislative Committee

Member, Virginia Municipal League’s Transportation Committee

Member, Virginia Safe Routes to School Network

Member, Virginia Sustainable Building Network

Former Chair, Washington Metropolitan Council of Governments Aviation Policy Committee

Member, Youth Policy Commission

Staff, American Online

Program Manager, The Pew Charitable Trusts

Former Member, Alexandria Volunteer Bureau Board

Former Co-Chair, Alexandria’s Community Services Board

Former Board Member, Care for the Homeless, New York

Member, Del Ray Artisans

Former President/Member, Del Ray Citizens Association

Co-Chair, Eco-City Alexandria

Member, JAYCEES

Member, The Sierra Club