Subject
United States Politics and government
49
Watergate Affair, 1972-1974
25
Presidents
21
United States Foreign relations
17
Presidents Election
11
Impeachment
8
Influence
6
Campaign debates
4
Cold War
4
History
4
Presidential candidates
4
Soviet Union Foreign relations
4
United States History
4
Impeachments
3
Political and social views
3
Political culture History
3
Statesmen
3
Vietnam War, 1961-1975
3
Cabinet officers
2
California Politics and government
2
Chile Foreign relations
2
Executive power
2
Pardon
2
Political campaigns History
2
Political leadership
2
Public opinion
2
Public opinion History
2
United States Military policy
2
Vietnam War, 1961-1975 Aerial operations, American
2
Vietnam War, 1961-1975 Diplomatic history
2
Vietnam War, 1961-1975 Naval operations, American
2
Visits of state
2
Abuse of administrative power
1
Anti-Catholicism History
1
Anti-communist movements
1
Antimissile missiles
1
Arab countries Foreign relations
1
Arab-Israeli conflict
1
Arms transfers
1
Ballistic missile defenses
1
Biological arms control
1
Cambodia History
1
Canal Zone Politics and government
1
Catholics Political activity History
1
Chemical arms control
1
Chile History
1
Chile History Causes
1
Chile Politics and government
1
China
1
China Foreign relations
1
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