Separation of Powers: Separation of powers refers to dividing governmental authority into distinct branches (executive, legislative, judicial) with separate functions. It prevents any single branch from becoming too powerful.
Checks and Balances: Checks and balances is a system in which each branch of government has some control over the actions of other branches. It ensures that no branch becomes dominant or abuses its power.
Popular Sovereignty: Popular sovereignty is the belief that ultimate power resides in the people. It emphasizes that government authority is derived from the consent of the governed and can be altered or abolished if it fails to serve its citizens.