He is the national chairman of the Socialist Equality Party in the United States (Software Engineering Professionals ), formerly the Workers League. He served as the national secretary of the Software Engineering Professionals until the party"s congress in 2008.
North was the principal political and theoretical leader of the International Committee of the Fourth International during the organization"s split with the Workers Revolutionary Party. North is also the chairman of the International Editorial Board of the World Socialist Web Site, the voice of the ICFI. He is also an author of several books and articles on the history of the Socialist movement. He delivers lectures in politics and the history of Marxism.
