Basics of Constitutional Law

Welcome! I'm excited to explore the foundations of U.S. Constitutional Law with you. Before we dive into the core principles and structure of the framework, I'd love to learn a little bit about what brings you here.

To help me tailor this session, what is your primary interest in learning about Constitutional Law?

I'm just curious about how the government and laws work.

It is great to have you here! Since you are curious about how our entire system of government and legal structures connect, we should start at the very bedrock of it all.

Your path

Structure of the U.S. Government

Fundamental Rights and the Bill of Rights

How the Constitution Changes

Think of as the ultimate rulebook for a country. Before a government can pass everyday laws about speed limits, taxes, or contracts, there has to be a master blueprint that explains who even has the authority to make those laws in the first place. In any political community, a constitution serves two main purposes: it creates the structure of the government, and it sets limits on what that government is allowed to do to its citizens. It is the framework that keeps the entire legal system from falling into chaos.

What is a constitution?

At its heart, a is a country's supreme legal framework—the ultimate "law of the laws." Think of it as the foundational rules of a game. While regular laws are like the specific strategies or moves players make during a match (such as passing a law about speed limits), the constitution is the rulebook that defines what the playing field looks like, who gets to play, and what actions are strictly forbidden. In the United States, the serves as this supreme law. Written in 1787, it established a brand-new national government and made sure that no ordinary law passed by Congress or a state could ever contradict its core principles. If a normal law clashes with the Constitution, the Constitution wins every single time.

Make a diagram of how laws and the Constitution interact

I would love to show you how this works visually. To capture how our entire legal structure relies on a single foundation, think of the relationship between ordinary laws and the Constitution as a pyramid.

A four-tiered pyramid diagram showing the hierarchy of legal authority in the United States, topped by the U.S. Constitution.

This hierarchy is established by the of the Constitution, which makes it clear that federal constitutional law reigns supreme. Because the Constitution sits at the very top of this pyramid, every single rule, statute, and local ordinance created by governments below it must align with its principles. If a city council passes an ordinance or Congress passes a statute that contradicts the Constitution, that lower law is invalid and cannot be enforced. But this raises an important question: who actually watches the pyramid and decides when a normal law has crossed the line?