He took a leading role in guiding the public faction supported by the SWP, the International Committee of the Fourth International; and supported the eventual reunification of the two sides in 1963, which led to the formation of the United Secretariat of the Fourth International.
他在引导公众支持社会主义工人党与第四国际的国际委员会派方面起到了主要作用；并支持了两方在1963年最终统一，这导致了第四国际统一书记处（The United Secretariat of the Fourth International）的建立。