Ted served in the Senate with his brother Robert (1965–1968), and was serving in the Senate when his nephew, Joseph P. II, and his son, Patrick J., served in the U.S. House of Representatives representing Massachusetts's 8th congressional district (1987–1999) and Rhode Island's 1st congressional district (1995–2011), respectively. In November 2012, Joseph P. Kennedy III, son of former U.S. representative Joseph P. Kennedy II and grandson of former senior Robert F. Kennedy, was elected to the U.S. House of Representatives from Massachusetts's 4th congressional district. In 2020, Joseph P. III lost the U.S. Senate primary election in Massachusetts to incumbent Ed Markey, the first Kennedy to ever lose an election in the state. Robert F. Kennedy was not on the ballot in Massachusetts in the 1968 Democratic Party presidential primaries and finished second to Eugene McCarthy as a write-in candidate.
Ted served in the Senate with his brother Robert (1965–1968), and was serving in the Senate when his nephew Joseph P. II, and his son, Patrick J., served in the U.S. House of Representatives representing Massachusetts's 8th congressional district (1987–1999) and Rhode Island's 1st congressional district (1995–2011), respectively. In November 2012, Joseph P. Kennedy III, son of former U.S. representative Joseph P. Kennedy II and grandson of former senior Robert F. Kennedy, was elected to the U.S. House of Representatives from Massachusetts's 4th congressional district. In 2020, Joseph P. III lost the U.S. Senate primary election in Massachusetts to incumbent Ed Markey, the first Kennedy to ever lose an election in the state. Robert F. Kennedy was not on the ballot in Massachusetts in the 1968 Democratic Party presidential primaries and finished second to Eugene McCarthy as a write-in candidate.