Author/Creator
- United States. Congress. Senate. Committee on Foreign Relations✖[remove]3,947
- United States1,218
- United States. Congress. Joint Committee on Taxation166
- United States. President (1993-2001 : Clinton)134
- United States. President (1981-1989 : Reagan)73
- United States. President (1989-1993 : Bush)43
- Library of Congress. Congressional Research Service42
- United States. President (1993- : Clinton)34
- United States. Congress. House. Committee on Foreign Affairs31
- United States. President (2001-2009 : Bush)30
- United States. Congress. House. Committee on International Relations27
- Mansfield, Mike, 1903-200125
- United States. Department of State22
- Canada18
- United States. President (1953-1961 : Eisenhower)17
- Library of Congress. Foreign Affairs and National Defense Division14
- Pell, Claiborne, 1918-200914
- Mexico12
- Library of Congress. Foreign Affairs Division11
- United States. Congress. Senate. Committee on Armed Services11