Every law student learns the same story. John Marshall wrote Marbury v. Madison in 1803, established judicial review, and handed the Supreme Court the power to be the final word on what the Constitution means. The Court has been repeating that story ever since.
There is one problem with it. It is not what the opinion says.
Read the actual holding. Not the summary. Not what a casebook says about it. The opinion itself. Marshall stated the rule plainly: If a law be in opposition to the Constitution, the Court must determine which of these conflicting rules governs the case. This is of the very essence of judicial duty.
That is a conflict-resolution rule. When a statute and the Constitution clash in a case before the Court, the Constitution wins. The Court applies the higher law to the case in front of it. That is what Marbury held.
What It Did Not Hold
Marbury did not hold that the Supreme Court interpretation of the Constitution is itself the supreme law of the land. It did not hold that when the Court says what the Commerce Clause means, or what the Second Amendment allows, or what due process requires, every other branch of government is permanently bound by that reading. None of that is in the opinion. Search every paragraph. It is not there.
Marshall held the Constitution above a conflicting statute in the case before him. That is a completely different proposition from holding the Court above every other branch of government on every constitutional question forever. Those are opposite positions, and the legal establishment has spent 170 years pretending they are the same thing.
The Move That Actually Happened
The doctrine of judicial supremacy was not established in 1803. It was built slowly after the founding, case by case, through courts misrepresenting what Marshall actually held. It finally came out in the open in 1958. Cooper v. Aaron is where the Supreme Court stopped being subtle about it. All nine justices signed the opinion, which declared that the Court interpretation of the Fourteenth Amendment in Brown v. Board of Education was itself the supreme law of the land and binding on every state official.
Now go read Article VI. It names three things as the supreme law of the land: the Constitution itself, laws made in pursuance of it, and treaties made under the authority of the United States. A Supreme Court opinion is not on that list. It was never on that list. The Court put itself on the list in 1958 by announcing it belonged there. That is not interpretation. That is the Court rewriting Article VI without going through Article V.
The Oath Problem
Article VI contains the oath requirement. Senators, Representatives, state legislators, executive officers, and judicial officers are all bound by oath to support the Constitution. Every one of them. The same oath. The same document. Judicial supremacy requires you to read that provision as meaning something it does not say. Under the doctrine, the oath every officer takes is not really an oath to the Constitution directly. It is an oath to follow the Supreme Court interpretation of the Constitution. That is not what Article VI says. It says every officer is bound to the Constitution itself. The Court is one of those officers. It is not the arbiter of what every other officer owes under the oath.
Why This Matters Right Now
This is not a historical argument about a 223-year-old case. Every time the Supreme Court upholds an unconstitutional gun law, cites Heller or Bruen presumptively lawful language to preserve infringements the text prohibits, or tells Congress and the states that its reading of any constitutional provision binds them permanently, it is using the manufactured doctrine of judicial supremacy to do it. If Marbury means what Marshall said it means, the Constitution is supreme over the Court. Thomas Cooley put it plainly: acquiescence for no length of time can legalize a clear usurpation of power. It does not matter that the doctrine is two centuries old. Age does not amend the Constitution. Article V does. Marshall held the Constitution above Congress. The Supreme Court holds the Court above everyone. If you still think those are the same proposition, read the opinion again. The full argument, documented from the primary sources, is in SCOTUS: The Judicial Coup.