‘Ideology Challenges Politics’ identifies what ideologies are and how they differ from political doctrines. Ideology refers to the negative and positive poles of a dogmatic conviction. It refers both to the truth, and also to all the other beliefs which are judged to be false in terms of that belief. Marxism is then discussed and it is shown that the classic ideologists of the last two centuries dreamed of the drama of revolution. The tripartite structure theory of ideology is also described: first is the oppression of some abstract class of person; second is the struggle against the oppressive system; and finally the liberation, the aim to attain a fully just society.