He is one of the founding members of Fatah, the biggest faction of the PLO, and the first Palestinian ambassador to Iran, following the revolution. During the 1970s he led the indirect negotiations between the PLO and the United States.
As an original member of Fatah, which is the primary faction within the PLO, and the inaugural Palestinian envoy to Iran following the revolution, he directed the indirect negotiations between the PLO and the United States during the 1970s.