Courts

What is judicial review?

The short answer

Judicial review is the power of courts to decide whether a law or government action conflicts with a constitution. The Supreme Court first struck down an act of Congress this way in Marbury v. Madison (1803). Courts use the power only in actual cases.

  • Facts checked November 5, 2026
  • 7 sources
  • 4 min read
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Key facts

1803

February Term in which the Court decided Marbury v. Madison

5 U.S. 137

5 years

Term of the justice of the peace post named in William Marbury’s commission

Act of February 1801, quoted in Marbury

3 elements

What a federal plaintiff must show for standing: injury, causation and redress

Lujan (1992)

The dispute behind Marbury v. Madison

In February 1801, Congress passed a law for the of Columbia that let the president name justices of the peace to serve for five years. President John Adams signed a commission naming William Marbury to one of these posts, and the seal of the United States was affixed to it, but the commission never reached him. The new secretary of state, James Madison, refused to deliver it. At the December 1801 , Marbury and three others asked the Supreme Court for a writ of mandamus, an order commanding Madison to deliver their commissions.

Good to know

The Constitution does not use the term. The Supreme Court says “the function of judicial review is not explicitly provided in the Constitution.”

What the Court decided

Chief Justice John Marshall’s opinion, from the February Term of 1803, took up three questions.

  • Did Marbury have a right to the commission? Yes. Refusing to deliver it violated that right.
  • Did the law give him a remedy? Yes.
  • Could the Supreme Court issue this order? No.

The act establishing the federal courts authorized the Supreme Court to issue such orders to people holding federal office. But Article III gives the Court original only in cases affecting ambassadors, other public ministers and consuls, and cases in which a state is a party. An order to the secretary of state to deliver a paper, the Court reasoned, was in effect an original action, not an appeal. It said the statute’s grant of authority “appears not to be warranted by the .” The opinion’s last line reads, “The rule must be discharged.”

How the opinion reasoned

Marshall began with the idea that written constitutions are “the fundamental and paramount law of the nation,” so “an act of the legislature repugnant to the constitution is void.” When a law and the Constitution both apply to a case, he wrote, “the court must determine which of these conflicting rules governs the case.” He offered an example. The Constitution says “no tax or duty shall be laid on articles exported from any state.” Suppose a duty on exports of cotton and a suit to collect it. Marshall asked whether judges ought “to close their eyes on the constitution, and only see the law.” He also pointed to the oath judges take to support the Constitution.

The National Archives notes that nothing stated in the Constitution specifically gave the Court this power. The Court’s website adds that state courts had overturned legislative acts under state constitutions before 1789.

Common mix-up

William Marbury did not get an order from the Court. It said he had a right to his commission and a remedy under the law, but the statute that would have allowed the order went beyond Article III.

What courts can do

The Supreme Court describes judicial review as its authority to invalidate legislation or executive actions that, in its judgment, conflict with the Constitution. Article VI also binds judges in every state to the Constitution and to federal law. A Supreme Court ruling on a constitutional issue can be altered only by a constitutional amendment or by a new ruling of the Court. A ruling on what a statute means is different, because new legislation can follow it.

What courts cannot do

  • Give advice. The Constitution limits the Court to “Cases” and “Controversies.” Chief Justice John Jay declined to advise President George Washington on a proposed foreign policy decision, and the Court says it “does not give advisory opinions.”
  • Rule without a real dispute. In Muskrat v. United States (1911), Congress had authorized suits to test acts of Congress. The Court called this “an attempt to provide for a judicial determination, final in this court, of the constitutional validity of an act of Congress” and ordered the suits dismissed.
  • Hear anyone who objects. Under Lujan v. Defenders of Wildlife (1992), a federal plaintiff must show a concrete injury, a connection between that injury and the challenged conduct, and a likelihood that a favorable decision would redress it. This is called standing.
  • Decide political questions. In Nixon v. United States (1993), a former federal judge, Walter Nixon, challenged how the Senate tried his impeachment. The Constitution gives the Senate the “sole Power to try all Impeachments,” and the Court held that the claim was not one for the courts to decide.
From the record

It is emphatically the province and duty of the judicial department to say what the law is. Those who apply the rule to particular cases, must of necessity expound and interpret that rule. If two laws conflict with each other, the courts must decide on the operation of each.

Marbury v. Madison · 5 U.S. 137 (1803)Read the full text

Questions people ask

Does the Constitution mention judicial review?
Not by name. The Supreme Court says the function “is not explicitly provided in the Constitution.” Marbury v. Madison drew it from a written constitution’s status as law and from the duties of judges.
Was Marbury the first time a court overturned a law?
No. According to the National Archives, it was the first time the Supreme Court declared unconstitutional a law passed by Congress and signed by the president. State courts had already overturned legislative acts under state constitutions before 1789.
Can the Supreme Court strike down a law on its own initiative?
No. The Court says its function “is limited only to deciding specific cases,” so a law reaches it through a case that meets the Constitution’s requirements.
Can a Supreme Court decision on the Constitution be changed?
Yes, by a constitutional amendment or by a new ruling of the Court. When the Court interprets a statute, new legislation can also change the result.

Sources

Checked November 5, 2026. Primary sources first, then official records, then nonpartisan research.

Cite this page

US Government Made Simple. “What is judicial review?” Facts checked November 5, 2026. https://usgovmadesimple.com/courts/judicial-review/

How these facts were checked: our promise. Every substantive fix is listed on the corrections page.

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