A fundamental concept in the U.S. system of government, "checks and balances" refers to the distribution of powers among the three branches of government – the executive, legislative, and judicial branches – to ensure that no single branch becomes too powerful. Each branch has the ability to limit the actions of the other two, which helps maintain a system of accountability and prevent the abuse of power. For example, the President can veto legislation passed by Congress, but Congress can override the veto with a two-thirds majority vote. This system of checks and balances is designed to protect the rights and liberties of U.S. citizens and maintain a system of government that operates within defined limits.

checks and balances
It is a system of checks and balances.

checks and balances