A General Theory of Party, Opposition and Government, 1688–1832

England has not known a simple two-party system, or a party system of any sort. The lineage of English parties is fragmented and discontinuous. Most of the apparent continuities, like the myth of a long-standing two-party system, have been invented in retrospect by politicians and publicists seeking the justification of a pedigree. Party itself has not been a constant phenomenon, which could be defined by the political scientist and then searched for by the historian. The English experience, rather, is of a succession of discontinuous two-, three-, even four-party systems whose components both develop and relate to each other through changing conventions. Often the fiction of the ‘two-party system’ has disguised the reality of three or more parties; parties which, themselves, can be the vehicles for a wide range of issues. It is a commonplace, which was evident to Hume and Bolingbroke, that whigs and tories exchanged many of their policy commitments in the early eighteenth century; but the same suggestion has been made of the Conservative and Labour parties today. The content of a party's programme has always been almost infinitely flexible; except in respect of the questions raised by a small number of threats, challenges or problems. The existence and endurance of party systems has usually articulated the ideological polarity which such challenges induce.