Supreme Court Bench: Composition, Decisions, and Ethics

The Supreme Court bench is the nine-member body at the top of the federal judiciary: one Chief Justice and eight Associate Justices who sit together to decide questions of federal law and constitutional interpretation. The word refers both to the physical mahogany bench where the justices sit and to the collective authority they hold. Every justice’s vote counts equally, decisions require a majority of those participating, and the justices serve for life unless they retire, die, or are removed through impeachment.

Who Sits on the Bench

Federal law fixes the Court at nine justices and sets the quorum needed to do business.1Office of the Law Revision Counsel. 28 USC 1 – Number of Justices; Quorum The Chief Justice carries administrative duties beyond deciding cases, including presiding over the Judicial Conference of the United States, the policymaking body for the federal court system.2Office of the Law Revision Counsel. 28 USC 331 – Judicial Conference of the United States When it comes to voting on cases, though, the Chief has no greater weight than any Associate.

Nine has been the number since 1869. Congress changed it six times before settling there.3Supreme Court of the United States. The Court as an Institution The odd number matters because it prevents deadlocks when every justice participates.

How Justices Reach the Bench

The Constitution gives the President the power to nominate justices, subject to the Senate’s advice and consent.4Constitution Annotated. Article 2 Section 2 Clause 2 A vacancy opens when a justice dies, retires, or resigns. The President then selects a nominee, and the Senate Judiciary Committee holds hearings where senators question the nominee on judicial philosophy, background, and qualifications. After the hearings, the full Senate votes, and a simple majority confirms.5United States Senate. Supreme Court Nominations A confirmed justice takes two oaths before serving: the constitutional oath required of all federal officers and a separate judicial oath.

Until 2017, ending debate on a Supreme Court nomination required 60 votes to invoke cloture, which effectively forced bipartisan support. On April 6, 2017, the Senate reinterpreted its rules to let a simple majority cut off debate.6Congress.gov. Senate Proceedings Establishing Majority Cloture for Supreme Court Nominations The party controlling the Senate can now confirm a justice without any votes from the other side.

How Long Justices Serve

Article III provides that federal judges “shall hold their Offices during good Behaviour,” which in practice means a lifetime appointment, and the same provision bars Congress from reducing their salaries while they serve.7Constitution Annotated. U.S. Constitution – Article III Both protections exist to insulate the judiciary from political pressure. A justice who doesn’t face reelection or a pay cut can decide cases on legal grounds rather than popularity.

The only way to force a justice off the bench is impeachment. The House must approve articles of impeachment by simple majority, and the Senate then conducts a trial requiring a two-thirds vote to convict and remove.8United States Senate. About Impeachment Only one Supreme Court justice has ever been impeached, Samuel Chase in 1805, and the Senate acquitted him. In practice, justices leave through retirement or death.

How the Bench Decides Cases

The Court’s term begins on the first Monday in October and typically runs through late June or early July.9Supreme Court of the United States. The Court and Its Procedures It alternates between sittings for oral argument and recesses for writing. Arguments usually wrap up in April, and the biggest opinions often come down in the last days of June.

Cases arrive almost entirely through petitions for a writ of certiorari. Thousands come in each term, and the Court agrees to hear only a small fraction. Under the informal “rule of four,” at least four justices must vote to accept a case for it to make the docket. A denial of certiorari is not an endorsement of the lower court’s ruling; it simply means the justices chose not to take the question. The Court hears roughly 60 to 80 argued cases per term.

Unlike federal appeals courts, which decide cases in three-judge panels, the Supreme Court always sits as a full body. Six justices are required for a quorum.1Office of the Law Revision Counsel. 28 USC 1 – Number of Justices; Quorum If recusals or vacancies drop participation below six, the Court cannot decide that case. Each side ordinarily receives 30 minutes for oral argument, and the justices question the attorneys actively throughout. The justices then meet in a private conference where the Chief Justice opens discussion and each justice speaks in order of seniority. Decisions are reached by majority vote of the participating justices. When the vote splits evenly, the lower court’s ruling stands, and the tie creates no binding precedent.

Who Writes the Opinion

When the Chief Justice is in the majority, the Chief assigns which justice writes the Court’s opinion. When the Chief is in the minority, the most senior justice in the majority makes the assignment. The author shapes the reasoning that will bind lower courts, so the assignment carries real weight. Justices who agree with the result but not the reasoning write concurrences; those who disagree write dissents. If no single opinion commands five votes, the opinion with the most support becomes a plurality opinion, which carries less precedential weight.

Ethics Rules That Govern the Bench

Federal law requires any justice to step aside from a case whenever impartiality could reasonably be questioned. Under 28 U.S.C. § 455, specific grounds include personal bias toward a party, a financial interest in the outcome, or a prior role as a lawyer or witness in the matter.10Office of the Law Revision Counsel. 28 USC 455 – Disqualification of Justice, Judge, or Magistrate Judge No substitute sits in a recused justice’s place, so a recusal can shrink the deciding group and raise the odds of a tie.

In November 2023, the Court adopted its first formal Code of Conduct.11Supreme Court of the United States. Code of Conduct for Justices of the Supreme Court of the United States It covers five areas: maintaining the integrity and independence of the judiciary, avoiding the appearance of impropriety, performing the duties of office impartially, limiting outside activities, and refraining from political conduct. Specific rules bar justices from letting personal relationships influence decisions, from commenting publicly on the merits of pending cases, and from belonging to organizations that discriminate based on race, sex, religion, or national origin. Critics have noted the Code lacks an independent enforcement mechanism, leaving compliance largely to each justice’s own judgment.

What Justices Earn

As of 2026, the Chief Justice earns $320,700 per year, and each Associate Justice earns $306,600.12United States Courts. Judicial Compensation Article III’s salary protection means Congress can raise but never lower these figures during a justice’s service.7Constitution Annotated. U.S. Constitution – Article III

Where the Justices Sit

Seating on the physical bench follows seniority. The Chief Justice takes the center seat. The most senior Associate Justice sits to the Chief’s right, the next most senior to the left, and the pattern alternates outward so the newest justices sit at the ends. Before entering the courtroom, the justices gather in a robing room, put on their black robes, and shake hands with every other justice. The handshake is meant to signal that disagreement over the law does not carry into personal hostility. Oral arguments are open to the public, with seating distributed in part through an online lottery pilot.13Supreme Court of the United States. Visitor’s Guide to Oral Argument