| Homeland Security | Homeland Security | 8 |
| Defense | Defense | 6 |
| Veterans | Veterans | 5 |
| Government Issues | Government Issues | 5 |
| Health Issues | Health Issues | 5 |
| Budget/Appropriations | Budget/Appropriations | 5 |
| Urban Development/Municipalities | Urban Development/Municipalities | 4 |
| Chemicals/Chemical Industry | Chemicals/Chemical Industry | 3 |
| Civil Rights/Civil Liberties | Civil Rights/Civil Liberties | 3 |
| Law Enforcement/Crime/Criminal Justice | Law Enforcement/Crime/Criminal Justice | 3 |
| Pharmacy | Pharmacy | 3 |
| Real Estate/Land Use/Conservation | Real Estate/Land Use/Conservation | 3 |
| Retirement | Retirement | 2 |
| Postal | Postal | 2 |
| Financial Institutions/Investments/Securities | Financial Institutions/Investments/Securities | 2 |
| Telecommunications | Telecommunications | 2 |
| Manufacturing | Manufacturing | 2 |
| Torts | Torts | 1 |
| Medical/Disease Research/Clinical Labs | Medical/Disease Research/Clinical Labs | 1 |
| Railroads | Railroads | 1 |