Premise: Robert Francis `` Bobby '' Kennedy ( November 20 , 1925 -- June 6 , 1968 ) , commonly known by his initials RFK , was an American politician from Massachusetts . He began his political career in Massachusetts as the manager for his brother John 's successful campaign for the U.S. Senate in 1952 . Kennedy resigned from the committee to conduct his brother John 's campaign in the 1960 presidential election .
Hypothesis: Robert F. Kennedy managed his brother's campaign for the U.S. Senate in 1952.
Label: ENTAILMENT