 For his part, Bukharin accused Preobrazhensky and his "left opposition" who supported him in imposing "feudal military exploitation of the peasantry" and "internal colonialism".The general secretary of the Central Committee of the All-Union Communist Party (Bolsheviks), Joseph Stalin, initially supported Bukharin's point of view, but after Trotsky's exclusion from the Party's Central Committee in late 1927, he changed his position to the opposite.This led to a decisive victory for the teleological school and a radical turn from the New Economic Policy.