Whakaotihia te rerenga e whai ake nei: I te tau 1937, i peia nga Trotskyists mai i te Socialist Party, he mahi i arahi ki te hanganga o te Socialist Workers Party (SWP) i te mutunga o te tau. I roto i te SWP, i hono a Burnham ki a Max Shachtman i roto i te pakanga roopu mo te tuunga o te roopu SWP, i arahina e James P. Cannon, i tautokohia e Leon Trotsky, e tiaki ana i te Soviet Union hei kawanatanga kaimahi kua pakaru ki nga whakaekenga o te imperialism. Shachtman me Burnham, ina koa i muri i te kitenga o te kawenata Nazi-Soviet o te tau 1939 me nga whakaekenga o Poland, Latvia, Lithuania, me Estonia e te kawanatanga o Joseph Stalin, me te
Ko te whakaekenga a te Soviet o Finland i te marama o Noema 1939, i kii ko te USSR he ahua hou o te hapori akomanga imperialist, na reira kaore i tika te tautoko whakaharahara mai i te kaupapa hapori.