Senator Warner serves on the following committees and subcommittees:
- Select Committee on Intelligence (Vice Chairman)
- Energy, Natural Resources and Infrastructure
- International Trade, Customs, and Global Competitiveness
- Financial Institutions and Consumer Protection
- National Security and International Trade and Finance
- Securities, Insurance, and Investment
Senator Warner is a part of the following Congressional Caucuses:
- Senate Cybersecurity Caucus, Co-Chair and Founder
- Senate Community Development Finance Caucus, Co-Chair and Founder
- Senate Democratic Caucus, Vice Chair of Conference
- Senate India Caucus, Co-Chair
- Senate Aerospace Caucus, Co-Chair
- Senate Advanced Nuclear Caucus, Co-Chair
- Bipartisan Congressional Task Force on Alzheimer’s Disease, Co-Chair
- Senate Army Caucus
- Senate Bipartisan Small Brewers Caucus
- Congressional Coalition on Adoption
- Congressional Federal Workforce Caucus
- Senate Competitiveness Caucus
- Senate CTE Caucus
- Defense Communities Congressional Caucus
- Senate Defense Communities Caucus
- Congressional Fire Services Caucus
- Senate Caucus on Foster Youth
- Senate Friends of Scotland Caucus
- Senate Marine Corps Caucus
- Senate Philanthropy Caucus
- Congressional Sportsmen’s Caucus
- Tennessee Valley Authority Congressional Caucus
- Senate Travel Caucus
- Senate Unmanned Aerial Caucus
- Senate Oceans Caucus
- HBCU Caucus
- Senate French Caucus
- Senate Diabetes Caucus
- Senate Chicken Caucus