A
- Addiction, Treatment and Recovery Caucus (2004–)
- Afterschool Caucuses (2005-)
- Alzheimer's Disease Congressional Task Force (1999–)
- Americans Abroad Caucus (2007–)
- Anti-Value Added Tax Caucus, The (Anti-VAT Caucus) (2006(?)–)
- Appalachian Caucus (2006(?)–)
- Armenian Caucus (1991-)
- Army Corps Reform Caucus (2006(?)–)
Read more about this topic: Caucuses Of The United States Congress