For one thing, the American Communist Party did not like him, and he hated them right back. They distanced themselves from his "share the wealth" programme, for example, and when the right called "share the wealth" communist, Long replied "Communism? Hell no! ... This plan is the only defense this country's got against communism." The programme was also pretty much just wealth redistribution. He was most similar to a populist in the style of Vargas in Brazil or Peron in Argentina in my opinion, attacking people on both the left and right if it increased their power.