He worked for three years in Vietnam and joined President Lyndon Johnson's White House staff in 1966, becoming a junior member of the delegation at the Paris peace talks.
Tri je godine radio u Vijetnamu, a 1966. priključio se osoblju Bijele kuće predsjednika Lyndona Johnsona, postavši mlađi član izaslanstva na mirovnim pregovorima u Parizu.