Federal states may be created in one of two ways
· Separate political units may decide to join together in a political partnership.
·An existing unitary government may choose to disperse.
In a federal system, each citizen is subject to two governments: the national or federal governments and the regional, state, or local government. The courts or some other impartial body is usually given the power to interpret the conditions of the constitution concerning the political powers of each level.
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