The Congressional Social Work Caucus is a bicameral authorized Congressional Member Organization (CMO) founded by former Congressman Edolphus “Ed” Towns in November 2010 during the 110th Congress. The mission of the caucus is to provide a platform in Congress that will allow social workers and allies to engage the federal government. The Social Work Caucus consists of members of the House of Representatives and the U.S. Senate who are professional social workers or who generally support the ideals, principles, and policies germane to the social work profession. Because of House Ethics rules, CMOs are prohibited from possessing resources of their own and must depend on the office budgets of their members. Consequently, the Social Work Caucus has participated in a number of congressional briefings and seminars in conjunction with other social work organizations such as the National Association of Social Workers, the Council on Social Work Education, and the Society for Social Work and Research. These public events covered a wide range of topics such as social workers’ roles in the Affordable Care Act, military social work, funding for mental health research, and trauma-based practice in child welfare.