Robert F. Kennedy at the White House, 1964

Robert Francis "Bobby" Kennedy (November 20, 1925 – June 6, 1968), also referred to by his initials RFK, was an American politician. He was a younger brother of President John F. Kennedy and acted as one of his advisers during his presidency. From 1961 to 1964, he was the U.S. Attorney General.

Following his brother John's assassination in November 1963, Kennedy continued to serve as Attorney General under President Lyndon B. Johnson for nine months. In September 1964, Kennedy resigned to seek the U.S. Senate seat from New York, which he won in November. Within a few years, he publicly split with Johnson over the Vietnam War.