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Checks and balances

In politics, the principle of checks and balances underlies many democratic governments. The term was coined by Montesquieu during the Enlightenment. The principle is an outgrowth of the classical idea of separation of powers. The first national system of checks and balances was outlined by the United States Constitution in 1789.

A government is said to have an effective system of checks and balances if no one branch of government holds total power, and can be overidden by another.

In most nations with a three-branch government, the process of checks and balances works in a manner similar to this:

Thus, each branch has some level of control over the other, and all three are necessary for the government to function properly.

See also: Three powers of the State, Separation of powers