Russian archivists responded by reviewing their files, and in late 1992 reported back that they had found no evidence Hiss ever engaged in espionage for the Soviet Union nor that he was a member of the Communist Party. However, Volkogonov subsequently stated he spent only two days on the search and had mainly relied on the word of KGB archivists. "What I saw gave me no basis to claim a full clarification", he said. Referring to Hiss's lawyer, he added, "John Lowenthal pushed me to say things of which I was not fully convinced." General-Lieutenant Vitaly Pavlov, who ran Soviet intelligence work in North America in the late 1930s and early 1940s for the NKVD said that Hiss never worked for the USSR as one of his agents.