| Defense | Defense | 35 |
| Indian/Native American Affairs | Indian/Native American Affairs | 28 |
| Budget/Appropriations | Budget/Appropriations | 26 |
| Science/Technology | Science/Technology | 24 |
| Transportation | Transportation | 21 |
| Veterans | Veterans | 17 |
| Education | Education | 16 |
| Environment/Superfund | Environment/Superfund | 11 |
| Homeland Security | Homeland Security | 11 |
| Energy/Nuclear | Energy/Nuclear | 8 |
| Health Issues | Health Issues | 8 |
| Gaming/Gambling/Casino | Gaming/Gambling/Casino | 6 |
| Marine/Maritime/Boating/Fisheries | Marine/Maritime/Boating/Fisheries | 5 |
| Economics/Economic Development | Economics/Economic Development | 4 |
| Fuel/Gas/Oil | Fuel/Gas/Oil | 4 |
| Urban Development/Municipalities | Urban Development/Municipalities | 4 |
| Law Enforcement/Crime/Criminal Justice | Law Enforcement/Crime/Criminal Justice | 2 |
| Travel/Tourism | Travel/Tourism | 1 |
| Labor Issues/Antitrust/Workplace | Labor Issues/Antitrust/Workplace | 1 |