Article 6, Supreme Law, refers to the Supreme Law of the Land.
It states, "This Constitution, and the Laws of the United States which shall be made in Pursuance thereof; and all Treaties made, or which shall be made, under the Authority of the United States, shall be the supreme Law of the Land; and the Judges in every State shall be bound thereby, any Thing in the Constitution or Laws of any State to the Contrary notwithstanding."
Meaning that: -the Constitution, -the Laws of the U.S. (current, and future ones), -Treaties that have been made or that will be made -
Robert Kennedy was attorney general during his brother John F. Kennedy's administration.
As attorney general, he fought organized crime and was a key supporter of the Civil Rights Movement.
In 1953 Kennedy became an advisor to the Senate Subcommittee on Investigations under Senator Joseph McCarthy. Kennedy left the position just six months later, objecting to McCarthy’s unjust investigative tactics.
In 1960 Kennedy managed brother John’s presidential campaign. When JFK was elected, Robert was made U.S. attorney general and became one of JFK’s closest cabinet advisors. When JFK was assassinated in 1963, Robert resigned as attorney general the following September and announced his intent to run for a senate seat.
In 1968 Kennedy ran against Eugene McCarthy in the presidential election primaries. On June 5, 1968, following his victory speech at the California Democratic Primary at the Ambassador Hotel in Los Angeles, Kennedy was shot several times by gunman Sirhan Sirhan. He died the next day at age 42, his promising presidential administration over before it began.