| Trade (domestic/foreign) | Trade (domestic/foreign) | 24 |
| Health Issues | Health Issues | 16 |
| Education | Education | 14 |
| Homeland Security | Homeland Security | 11 |
| Taxation/Internal Revenue Code | Taxation/Internal Revenue Code | 11 |
| Insurance | Insurance | 11 |
| Indian/Native American Affairs | Indian/Native American Affairs | 11 |
| Financial Institutions/Investments/Securities | Financial Institutions/Investments/Securities | 11 |
| Banking | Banking | 11 |
| Transportation | Transportation | 8 |
| Budget/Appropriations | Budget/Appropriations | 7 |
| Foreign Relations | Foreign Relations | 6 |
| Medical/Disease Research/Clinical Labs | Medical/Disease Research/Clinical Labs | 5 |
| Copyright/Patent/Trademark | Copyright/Patent/Trademark | 5 |
| Aviation/Airlines/Airports | Aviation/Airlines/Airports | 3 |
| Roads/Highway | Roads/Highway | 1 |
| Railroads | Railroads | 1 |