Majority Leader, Maryland State Senate, 2020-present

Senator, Maryland State Senate, District 39, 2007-present

Candidate, Maryland State Senate, District 39, 2022

Assistant Deputy Majority Leader, Maryland State Senate, 2014-2016

Assistant Deputy Majority Whip, Maryland State House of Delegates, 2011-2013

Delegate, Maryland State House of Delegates, District 39, 2002-2007

Deputy Majority Whip, Maryland State House of Delegates, 2006-2007

Member, Budget and Taxation Committee

Member, Children, Youth, and Families Committee

Member, Executive Nominations Committee

Member, Gaming Oversight Committee

Member, Joint COVID-19 Response Legislative Working Group

Member, Legislative Ethics Committee

Member, Legislative Information Technology and Open Government Committee

Member, Rules Committee

Member, Subcommittee on Capital Budget

Member, Subcommittee on Education, Business, and Administration

Member, Budget and Taxation Committee, Maryland State Senate, present

Member, Subcommittee on Capital Budget, Maryland State Senate, present

Chair, Subcommittee on Education, Business, and Administration, Maryland State Senate, present

Former Member, Commission on Innovation and Excellence in Education, Maryland State Senate

Former Member, Health, Education and Human Resources Subcommittee of the Budget and Taxation Committee, Maryland State Senate

Former Member, Joint Committee on Administrative, Executive and Legislative Review, Maryland General Assembly

Former Co-Chair, Joint Committee on Children, Youth, and Families, Maryland State Senate

Former Co-Chair, Joint Committee on Gaming Oversight, Maryland State Senate

Former Member, Joint Committee on Transparency and Open Government, Maryland State Senate

Former Member, Legislative Policy Committee, Maryland State Senate

Former Vice Chair, Standing Committee on Reapportionment and Redistricting

Vice President/Chief Financial Officer, Trecor Incorporated, 1987-present

Member, National Capital Region Transportation Planning Board, 2021-present

Member, Board of Directors, University of Maryland Medical System, 2018-present

Member, State Early Childhood Advisory Council, 2014-present

Member, State Traumatic Brain Injury Advisory Board, 2013-present

Member, P-20 Leadership Council of Maryland, 2010-present

Chair, Education Committee, National Conference of State Legislatures, 2008-present

Member, Education Committee, Southern Legislative Conference, 2008-present

Member, Maryland Green Caucus, 2003-present

Member, Board of Directors, Reginald S. Lourie Center for Infants and Young Children, 2001-present

Member, Advisory Board, Care for Kids, 1999-present

Steering Committee, Member, Maryland Democratic Business Caucus

Member, National Conference of State Legislatures, 2005-present

Member, Policy Committee, Board of Education, Representing District 1, Montgomery County

Chair, Subcommittee on Long-Range and Strategic Planning, Board of Education, Representing District 1, Montgomery County

Member, Women Legislators of Maryland, 2003-present

Member, Commission to Review Maryland's Use of Assessments and Testing in Public Schools, 2015-2017

Member, Chesapeake Bay Commission, 2014-2016

Member, Education Commission of the States, Maryland Senate Representative, 2015-Present

President, Women Legislators of Maryland, 2013-2014

Second Vice President, Women Legislators of Maryland, 2012

Secretary, Women Legislators of Maryland, 2009-2011

Member, Maryland Business Tax Reform Commission, 2008-2010

Member, 2009 State Plan for Post-secondary Education Work Group, 2008-2009

Member, Executive Board, Women Legislators of Maryland, 2008-2009

Member, Bi-County Committee, Montgomery County Delegation, 2003-2007

Member, Commission to Develop the Maryland Model for Funding Higher Education, 2007

Member, Land Use and Transportation Committee, Montgomery County Delegation, 2007

Bi-County Committee, Montgomery County Delegation, 2003-2007

Co-Chair, Task Force on School Safety, 2006-2007

Member, Transportation Committee, Montgomery County Delegation, 2007

Member, Governor's Commission on Quality Education in Maryland, 2004-2005

Member, Board of Education, Montgomery County, District 1, 1994-2002

Member, Board of Education, Montgomery County, 1994-2002

President, Board of Education, Montgomery County, District 1, 1997-1998, 2000-2001

Member, Joint Committee on the Selection of the State Treasurer, 2001

Chair, Audit Committee, Board of Education, Representing Montgomery County, District 1, 1998

Vice President, Board of Education, Montgomery County, District 1, 1996-1997

Member, Board of Directors, Montgomery Village Foundation, 1991-1996

President, Montgomery County Council of Parent-Teacher Associations, 1993-1994

President/Coordinator, Gaithersburg Meals on Wheels, 1982-1992