Kennedy, Robert FrancisKennedy, Rob‧ert Fran‧cis /ˈrɒbət ˈfrɑːnsɪs $ ˈrɑːbərt ˈfræn-/ (also Kennedy, Bobby)(1925–68) a US politician in the democratic party who was the brother of John F. Kennedy. He became a senator for New York in 1965. In 1968, when he was trying to become elected president of the US, he was shot.