Checks and Balances

A principle of government under which separate branches are empowered to prevent actions by other branches and are induced to share power. Checks and balances are applied primarily in constitutional governments. They are of fundamental importance in tripartite governments, such as that of the United States, which separate powers among legislative, executive, and judicial branches.

Why We Have Checks and Balances

The framers of the U.S. Constitution, who were influenced by Montesquieu and William Blackstone among others, saw checks and balances as essential for the security of liberty under the Constitution: “It is by balancing each of these powers against the other two, that the efforts in human nature toward tyranny can alone be checked and restrained, and any degree of freedom preserved in the constitution” (John Adams). Checks and balances ensures that not one branch will become too powerful and that all federal power is fairly distributed amongst the three branches.