Britannica
Sources used in this answer
- constitutionalism - Legal constitutionalism: from the separation of powers to rights and judicial review
- checks and balances
- Constitution of the United States of America - Civil liberties and the Bill of Rights
- Constitutional law - Judicial review
- Judicial review
- constitution - Constitutionality
- representative democracy - Institutions of a representative democracy
How does a written constitution limit government power?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
democracy
California voters casting their ballots in the 2012 U.S. presidential election.
A written constitution limits government power by serving as a "higher" law that defines the scope of authority for elected representatives and state institutions. It functions as a foundational document that establishes the rules of the political system, ensuring that government actions remain within legally defined boundaries.123
Key mechanisms through which a written constitution limits power include:
- Separation of Powers: By dividing government functions among distinct legislative, executive, and judicial branches, the constitution prevents any single group from exercising absolute control, ensuring that those who make laws are distinct from those who interpret or enforce them.14
- Checks and Balances: Constitutions often empower these branches to monitor and restrain one another, such as through presidential vetoes, legislative oversight, or the power of impeachment.4
- Judicial Review: Many modern constitutions grant courts the authority to examine government actions and legislation to ensure they conform to constitutional requirements. Actions found to be inconsistent with the constitution can be declared null and void.562
- Protection of Rights: Constitutions frequently include provisions, such as a Bill of Rights, that explicitly protect individual civil liberties from government encroachment.7
These structures are essential for maintaining the rule of law and preventing the rise of arbitrary or authoritarian rule.46