Late in December 1928, with the election campaign at an end, Wolfe was dispatched by the Lovestone-dominated Central Executive Committee of the American Communist Party to serve as it delegate to the Executive Committee of the Communist International (ECCI), where he replaced J. Louis Engdahl. In that capacity, he became involved in the attempt of Jay Lovestone to maintain control of the American organization over the growing opposition of Joseph Stalin and Vyacheslav Molotov, who ultimately supported the rival faction headed by William Z. Foster and Alexander Bittelman.