Chair, House New Democrat Coalition, 2005-2009
Co-Chair, House Iraqi Women's Caucus, 2004-2009
Co-Chair, Army Corps Reform Caucus
Member, Blue Dog Coalition
Member, Congressional Bicycle Caucus
Member, Congressional Caucus on the Arts
Member, Congressional Caucus to Fight and Control Methamphetamine
Co-Chair, Congressional Caucus for Women's Issues, Women in Business Task Force
Member, Congressional Heart and Stroke Coalition
Member, Congressional Human Rights Caucus
Member, Congressional Hunger Caucus
Member, Congressional Labor and Working Families Caucus
Member, Congressional Silk Road Caucus
Member, Congressional Taskforce on Tobacco and Health
Member, Congressional Victim's Rights Caucus
Member, Congressional Wine Caucus
Co-Chair, Democratic Caucus Task Force on Campaign Finance Reform
Vice Chair/Chair, Democratic Congressional Campaign Committee, Business Forum
National Vice Chair, Democratic Leadership Council
Co-Chair, Department of Energy Facilities Caucus
Member, Diabetes Caucus
Member, European Union Caucus
Chair, Future Security and Defense Capabilities Subcommittee
Members, Goods Movement Caucus
Member, House Centrist Coalition
Member, Human Trafficking Caucus
Co-Chair, Intelligent Transportation Systems Caucus
Member, International Conservation Caucus
Co-Chair, Iraqi Women's Caucus
Member, Livable Communities Task Force
Co-Chair, Metropolitan Mobility Caucus
Member, Missing and Exploited Children Caucus
Co-Chair, New Democrat Coalition Entitlement Reform Task Force
Chair, New Democrat Coalition
Former Finance Chair, New Democrat Network
Member, North American Treaty Organization Parliamentary Assembly
Member, Port Security Caucus
Co-Chair, Research and Development Caucus
Member, Savings and Ownership Caucus
Member, The Sudan Caucus
Member, Task Force on Nonproliferation
Co-Chair, Troop Capitol Hill: Honorary Girl Scout Caucus
Member, Board of Visitors, United States Military Academy
Leader, Vietnam Veterans of America Foundation's Nuclear Threat Reduction Campaign
Member, American Delegation, Wehrkunde Conference
Member, White House Conference on Saving Social Security

Board Member, Alumnae Resources
Board Member, Battered Women's Alternative
Board Member, Breast Cancer Fund
Board Member, Business Executives for National Security
Board Member, California Symphony
Majority Council Member, Emily's List
Board Member, Board of Regents, Seton Hall University