- American Energy Solutions Group
- Balanced Budget Amendment Caucus
- Congressional Caucus on Addiction, Recovery and Treatment
- Congressional Coal Caucus
- Congressional Constitution Caucus
- Congressional Cystic Fibrosis Caucus
- Congressional Home Health Caucus
- Congressional Immigration Reform Caucus
- Congressional Interstate 49 Caucus
- Congressional Kidney Caucus (Vice-Chairman)
- Congressional Long-Range Strike Caucus (Co-Founder & Co-Chairman)
- Congressional Missile Defense Caucus
- Congressional Natural Gas Caucus
- Congressional Pro-Life Caucus
- Congressional Services Caucus
- Congressional Sovereignty Caucus
- Congressional Sportsmen Caucus
- Congressional Tea Party Caucus
- GOP Doctors Caucus (Vice-Chairman)
- House Air Force Caucus
- House Army Caucus
- House National Guard and Reserve Components Caucus
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