John Foster Dulles

The Secretary of State under President Eisenhower, Dulles was chairman of the Carnegie Endowment for International Peace when Alger Hiss was president in 1947-1948. Dulles asked Hiss to consider becoming president of the organization in January 1946, but his relations with Hiss chilled after Chambers' accusations became public.  

During the HUAC hearings in August 1948, Nixon and HUAC leaked testimony and other information to Dulles about Whittaker Chambers' charges. At that point, Dulles (who had been mentioned as a potential Secretary of State, had Thomas E. Dewey defeated President Truman in the 1948 presidential election) pressured Hiss to resign from the Endowment. Dulles later appeared as a prosecution witness at the trials, disputing Hiss's recollection of the circumstances surrounding his resignation.