How many Justices must agree to an opinion for the Supreme Court to issue a decision?

Primarily appellate, but trial jurisdiction exists in a few specialized types of cases.

  • Three factors must be present before the U.S. Supreme Court will review a state court decision:
    1. A substantial federal question must be present.
        Must be a real question. If the issue was a long-settled one, then no question exists.
    2. The federal question must be crucial to the decision.
        Example: If a local obscenity ordinance is challenged and the Oklahoma Supreme Court holds that the ordinance violates both the state and U.S. constitutions, then the federal question is not crucial to the decision. The ordinance could not stand even if it's okay under the U.S. Constitution because it still violates the state constitution.
    3. The losing party must have exhausted all state remedies.
        This involves federalism and a respect for states' autonomy. Article IV of the U.S. Constitution declares that federal constitution and federal laws are the supreme law of the land. This doctrine of national supremacy provides the basis for the U.S. Supreme Court's review of state court rulings.

        Nonetheless, a fine balance must be maintained between national supremacy and the rights of states in a federal system. Therefore, the presumption is that the states are capable of rectifying their own errors and the federal judiciary should not step in too readily or easily.

  • The U.S. Supreme Court has almost complete discretion to choose the cases it will hear.
    • The losing side in the lower court files a petition for writ of certiorari.
        A writ is a court order.
        Writ of certiorari: the order the Supreme Court issues when it agrees to review a lower court decision; or a Supreme Court order agreeing to hear an appeal.

    • The Supreme Court either denies or grants the petition.

    • What does a denial of certiorari mean? Four of the nine justices did not agree to hear the case. It doesn't necessarily mean that the justices agreed with the lower court decision.
      • Possible Reasons for Denial:
        1. See no flaw in lower court decision.
        2. No substantial legal issue.
        3. Court's allowed time filled.
        4. Waiting for set of facts to address an issue.
        5. Don't want side issues.
    • Court agrees to hear only about 1 percent of the petitions it receives, according to a recent USA Today study.
  • Here's what happens after the court agrees to hear the case:
    1. The Court receives the transcripts.
    2. Both sides file lengthy case briefs.
    3. Lawyers for both sides make oral arguments before the court. The justices question the lawyers, but these questions don't necessarily indicate how the justices will decide the case.
    4. The justices vote in closed system.
    5. They determine who will write the court's opinion. The chief justice writes the opinion if he is in the majority. If not, then the senior justice in the majority writes the opinion.

  • Here are the types of opinions:
    • Majority -- at least five of the nine justices agree.
    • Concurring -- written when the majority didn't go far enough or went too far; the justice has something else to say.
    • Plurality -- opinion supported by more justices than any other opinion in a single case, but not supported by a majority of the justices.
    • Dissenting -- minority justices explain their reasons for not agreeing with the majority.
    • Per curiam -- an unsigned opinion issued by and for the entire court rather than by one judge writing for the court.
  • Remanded -- The appellate court returns the case to the lower court, directing the lower court to decide the case consistent with the higher court's opinion.
  • How many Justices must agree to an opinion for the Supreme Court to issue a decision?

    The Supreme Court of the United States in Washington, D.C. is the highest court in the nation.  It is also the only federal court named specifically in the Constitution, which states that,

    “The judicial power of the United States shall be vested in one Supreme Court.”

    Beyond that, however, the Constitution tells us little about the make-up or organization of the court; it gives no qualifications for holding seats on the court, and doesn’t establish how many justices will be on the court.

    The Judiciary Act of 1789 set the size of the court at six; one Chief Justice and five Associate Justices.    Over time, the court grew to as large as ten Justices.  With the Judiciary Act of 1869, Congress decreased the number to nine, a number which has remained constant to this day.

    How many Justices must agree to an opinion for the Supreme Court to issue a decision?

    Current Justices of the U.S. Supreme Court

    Chief Justice of the United States:
    • John G. Roberts, Jr.
    Associate Justices:
    • Clarence Thomas
    • Samuel A. Alito, Jr.
    • Sonia Sotomayor
    • Elena Kagan
    • Neil M. Gorsuch
    • Brett M. Kavanaugh
    • Amy Coney Barrett
    • Ketanji Brown Jackson
    Retired Justices:
    • Sandra Day O’Connor
    • Anthony M. Kennedy
    • David H. Souter
    • Stephen G. Breyer

    Read the biographies of the current Justices by visiting the website of the U.S. Supreme Court.

    Learn More About the U.S. Supreme Court

    Granting Certiorari

    The Supreme Court receives about 10,000 petitions a year. The Justices use the "Rule of Four” to decide if they will take the case. If four of the nine Justices feel the case has value, they will issue a writ of certiorari. This is a legal order from the high court for the lower court to send the records of the case to them for review. When all is said and done the Supreme Court will hear about 75-85 cases a year. This tells us that most petitions are denied.

    The majority of the Supreme Court’s cases today are heard on appeal from the lower courts. These cases usually come from the federal courts of appeal, but the Court does sometimes hear appeals from the state Supreme Courts as well.

    The Justices of the Supreme Court are most likely to take cases that will affect the entire country, not just the individuals involved. They want to clarify legal issues that are important to as many people as possible, so they take cases that will have a large constitutional impact, or that answer important legal questions that affect the whole nation.

    Examples include questions like;

    "Can kids pray in school?"
    "Can you burn a flag at an anti-government rally?"

    Justices will also take a case when the lower courts cannot agree on how to interpret the law involved, or in which different lower courts have interpreted the law differently. When the lower courts decide cases differently, it can lead to confusion.

    As the “court of last resort,” the Supreme Court can and does make decisions that all the courts must follow. This is called establishing a precedent; a legal example which will be followed in all similar cases in the future.

    By taking a case that involves an issue that has led to differing opinions in the lower courts, the Supreme Court creates a precedent that every court in the country has to follow. This guarantees that the laws are applied equally to all people, no matter where they live.

    The Supreme Court only takes cases from state courts when the appeal involves the U.S. Constitution. Thus, the person making the appeal must show that his or her rights, under the Bill of Rights, were denied by the state, or that some error was made in the court that affected their due process rights. Because of these restrictions, most of the Supreme Court’s cases come from the lower federal courts and not from state courts.


    How many Justices must agree to an opinion for the Supreme Court to issue a decision?

    The U.S. Supreme Court

    Directions: Click START to begin the Student Challenge. Use the ARROW to move through the questions. Check your RESULTS at the end.

    Congratulations - you have completed The U.S. Supreme Court. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

    Your answers are highlighted below.

    Shaded items are complete.

    1 2 3 4 End


    How many Justices must agree to an opinion for the Supreme Court to issue a discussion?

    At least four Justices have selected the case as being of such importance that the Supreme Court must resolve the legal issues. An attorney for each side of a case will have an opportunity to make a presentation to the Court and answer questions posed by the Justices.

    How many Justices must agree for an opinion to be a majority opinion?

    The first is the majority opinion, which states the decision of the majority of the Court, usually at least five of the justices. The next type is a concurring opinion, which is the opinion of one or more justices who voted with the majority, but for differing legal reasons.

    How many Justices must be present for a decision?

    Do all of the Justices have to be present in order to hear a case? A quorum of six Justices is required to decide a case.

    How many Justices must agree to hear a case?

    According to these rules, four of the nine Justices must vote to accept a case. Five of the nine Justices must vote in order to grant a stay, e.g., a stay of execution in a death penalty case. Under certain instances, one Justice may grant a stay pending review by the entire Court.