In these few, sensational examples of Jewish radicalism, President Clark thought he perceived the basic character of the Jewish people. He told ex-president Hoover in 1942 that the Jews "are essentially revolutionary, but they are not statesmen." Thirty-two percent of surveyed Americans shared his view.

However, there were prominent Jewish opponents of Marxism and Communism, while anti-Semitism flourished in the Soviet Union. A Salt Lake City newspaper headline read, “Anti-Semitism under Soviet Rule Revealed." Reuben owned a book on this subject by the American Jewish League Against Communism.

Yet he never altered his political assessment of the Jewish people. He apparently accepted the argument of another book in his library that the claim for Soviet anti-Semitism was a "big lie." He referred to "communistic tendencies, sponsored mainly by the Jews."

Although not all American anti-Communists were anti-Semitic, the more intense tended to be. Reuben's own fusion of anti-Communism and anti-Semitism was representative of this tendency.

Significantly, the Protocols of the Elders of Zion reinforced his attitudes. His enthusiasm for this publication indicated the extent to which he shared his anti-Semitic perceptions with others.