“All the men of the Machine may be divided into three categories representing tree distinct grades: the ´boys´, the ´henchmen´ and the ´bosses´. The boys are the simple men who do the rough work, very often the dirty work of politics. (…) The ´henchmen´ are the lieutenants and helps of the bosses.(…) The henchman is a sort of prefect or vicar who “works” for the boss, who manages the subordinate politicians and the electorate on his behalf.” – Moisei Ostrogorski, Democracy and the Party System in the United States, A Study in extra-constitutional government, The MacMillan Company, New York, 1910, pp. 230-234