Subject Topical
- Historic preservation31
- Pollution31
- Wild and scenic rivers31
- Black Lung Trust Fund30
- Local transit30
- Airports29
- Social Security29
- Environmental protection28
- Budget27
- Elections27
- Employment27
- Air travel26
- Acid rain25
- Health25
- Strip mining25
- Rivers24
- Coal mines and mining--Safety regulations23
- Offices23
- Political campaigns23
- Tourism23