- Senate Law Enforcement Caucus (Co-Chair)
- Senate Competitiveness Caucus (Co-Chair)
- Senate Chicken Caucus (Co-Chair)
- Senate Human Rights Caucus (Co-Chair)
- Senate Climate Solutions Caucus (Co-Chair)
- Senate ALS Caucus (Co-Chair)
- Congressional Trademark Caucus (Co-Chair)
- Senate Fuel Cell and Hydrogen Caucus (Co-Chair)
- Senate Caucus on Malaria and Neglected Tropical Diseases (Co-Chair)
- National Service Congressional Caucus (Co-Chair)
- Senate Oceans Caucus
- Senate Manufacturing Caucus
- Senate Renewables and Energy Efficiency Caucus
- Congressional International Creativity and Theft-Prevention Caucus
- Senate National Guard Caucus
- Senate Small Brewers Caucus
- Congressional Bicameral High-Speed & Intercity Passenger Rail Caucus
- Senate Diabetes Caucus
- Senate Global Internet Freedom Caucus
- Senate India Caucus
- Congressional French Caucus (co-chair)
- Cloud Task Force, Congressional High Tech Caucus
- Bicameral Congressional AIDS Caucus
- Senate Veterans Jobs Caucus
- Senate Air Force Caucus
- Congressional Inventions Caucus
- Congressional Bipartisan HBCU Caucus
- Senate Recycling Caucus