A multi-partite government is one in which the legislative, executive, and judicial powers are separately elected, or appointed with the consent of other branches of government. Multi-partite governments are contrasted with parliamentary systems, in which the elected parliament directly appoints the executive officers and also exercises direct legislative authority, and may or may not control appointment and promotion in the judiciary. The United States is a multi-partite government, where judicial officers are nominated by executive appointment and confirmed by legislative consent. In the American system, the principle of multi-partite government is described as checks-and-balances.

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