"communist influence" and that "rather than lose our identity as Americans, we left the party." The Social Democratic Federation was not organized as an electoral political organization but rather as an interest group seeking to establish connection with the trade union movement in a broader labor party. At the time of its creation the organization did incorporate the former SPA state locals in New York, Connecticut, Pennsylvania, and Maryland. The influential municipal parties in Reading, Pennsylvania and Bridgeport, Connecticut also left the Socialist Party to establish the SDF. In New York, the SDF supported Franklin Delano Roosevelt and American Labor Party candidates, but the takeover of the ALP by the Communist Party USA drove the SDF's adherents from that organization. Executive Secretary of the SDF was August Claessens, who later served as National Chairman of the group until his death in 1954. Reunification with the Socialist Party Reunification with the dissident Social Democratic Federation was long a goal of the Socialist Party regulars, with initial attempts beginning as early as 1937. In his 1938 book, Socialism on the Defensive, SP leader Norman Thomas acknowledged that a number of issues had been involved in the split which led to the formation of the SDF, including "organizational policy, the effort to make the party inclusive of all socialist elements not bound by communist discipline; a feeling of dissatisfaction with social democratic tactics which had failed in Germany" as well as "the socialist estimate of Russia; and the possibility of cooperation with communists on certain specific matters." Still, he held that "those of us who believe that an inclusive socialist party is desirable, and ought to be possible, hope that the growing friendliness of socialist groups will bring about not only joint action but ultimately a satisfactory reunion on the basis of sufficient agreement for harmonious support of a socialist program." This speedy reunification failed after Nazi-Soviet Pact of 1939 revealed the threat of a coalition of two totalitarian states. The threat revealed by this pact reduced the influence of pacifists in the Federation, the Socialist Party, and the labor movement. During the years of World War II through the first half of the 1950s, the SDF's paid membership drastically declined. Its influence on New York politics and labor unions similarly dropped. These declines corresponded with a general decline in the prestige of socialist organizations in the Cold War period, as well as