Centralized rule of the people also comes in many forms. In a dictatorship, the dictator establishes and enforces the rules with few checks and balances, if any. In a totalitarian system, one party makes the rules. The Communist states of the twentieth century (although egalitarian in theory) were ruled in practice by a small central committee. In a theocracy, one religion makes the rules based on their primary documents or interpretation of them, and religious leaders hold positions of political power. In each case, political power is centralized to a small group over the many.