A dictatorship is a form of government characterized by a single leader (dictator) or group of leaders that hold government power promised to the people and little or no toleration for political pluralism or independent media.
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A federal republic is a federation of states with a republican form of government. At its core, the literal meaning of the word republic when used to reference a form of government means: "a country that is governed by elected representatives and by an elected leader (such as a president) rather than by a king or queen".
