The Marxist Institute never seriously considered exile to Stalin’s Russia
Evidence
Despite the Institut’s Marxist image, at no time was the thought of going eastward to Stalin’s Russia seriously entertained, even by Grossmann, who made a short and unsuccessful journey to Moscow in the mid-thirties, or by Wittfogel. The only serious possibility left was America. Julian Gumperz was sent there in 1933 to explore the situation. — Martin Jay, The Dialectical Imagination, 179