Andrei Gromyko
In July 1963, Kennedy sent W. Averell Harriman to Moscow to negotiate a treaty with the Soviets. The introductory sessions included Khrushchev, who later delegated Soviet representation to Andrei Gromyko. It quickly became clear that a comprehensive test ban would not be implemented, due largely to the reluctance of the Soviets to allow inspections that would verify compliance.