By far the largest contribution to the decline of Communist Party was their own success. They had gained support from the poor and non-Caucasian workers by messages of bringing an improved lifestyle, equal rights, and expanded opportunities. But as these promises were coming true there was no longer a need for the Party. Most members, including Jack Wayne Hall, head of the ILWU in Hawaii, became convinced the task of the Communist Party was completed and the Party was dissolved in 1958. In February of 1959 it was reported that "FBI investigations, plus... Federal court convictions, had 'crippled' the Communist apparatus in Hawaii" The "anti-American activity" of the Communist Party of Hawaii was opposed by the IMUA organization.