
The federal judicial system of the United States is established in Article III of the Constitution, which outlines the judicial branch as one of the three separate and distinct branches of the federal government. Article III, Section I states that The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish. This provision establishes the Supreme Court and authorizes Congress to create a system of lower courts, which it first did through the Judiciary Act of 1789. This Act established a Supreme Court with six justices and created the lower federal court system, which has been altered and expanded over time.
| Characteristics | Values |
|---|---|
| Article of the Constitution | III |
| Section of the Constitution | I |
| Judicial Power | Vested in one supreme court and such inferior courts as Congress may establish |
| Jurisdiction | Legal ability to hear a case |
| Original Jurisdiction | Cases tried before the court, e.g., suits between two or more states |
| Appellate Jurisdiction | The court can hear the case on appeal, e.g., cases involving federal law |
| Number of Justices | 9 (8 associate justices and 1 chief justice) |
| Appointment | Appointed by the President and confirmed by the Senate |
| Term | Life |
| Salary | Cannot be decreased during their term |
| Judiciary Act | 1789 |
| Districts | Divided into 3 circuits: eastern, middle, and southern |
| Circuit Courts | Consist of any two justices of the Supreme Court and the district judge of such districts |
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What You'll Learn

Article III of the Constitution establishes the federal judiciary
Article III of the US Constitution establishes the federal judiciary. Article III, Section I states that "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish." This means that the judicial branch is one of the three distinct branches of the federal government, alongside the legislative and executive branches.
The Constitution grants Congress the authority to decide how to organize the Supreme Court and establish a system of lower courts. The Supreme Court is the highest court in the United States, with the power to decide appeals on all cases brought in federal court or those brought in state court involving federal law.
The federal judiciary is comprised of 13 appellate courts, known as the US Courts of Appeals, and 94 district or trial courts, called US district courts. The district courts are the starting point for cases arising under federal statutes, the Constitution, or treaties, and they have original jurisdiction in these cases. Bankruptcy courts are also established at the district level to handle bankruptcy proceedings.
The Supreme Court has nine justices, including one Chief Justice and eight Associate Justices. They are appointed by the President and confirmed by the Senate, typically serving for life. The Court has original jurisdiction over cases between two or more states, cases involving ambassadors, and other specific scenarios. It also has appellate jurisdiction over cases involving points of constitutional or federal law.
The Judiciary Act of 1789, signed by President Washington, was a significant development in the establishment of the federal judiciary. This Act created a Supreme Court with six justices and established the lower federal court system. It also granted the Supreme Court original jurisdiction in certain cases, such as issuing writs of mandamus.
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The Supreme Court is the highest court in the US
The Supreme Court is the highest court in the United States. It was established in 1789 by Article III of the US Constitution, which states that "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish." This Article also establishes the Supreme Court's jurisdiction, or legal ability to hear a case.
The Supreme Court has original jurisdiction over certain cases, such as suits between two or more states and cases involving ambassadors and other public ministers. It also has appellate jurisdiction over almost any other case that involves a point of constitutional and/or federal law. For example, the Supreme Court can hear cases where the United States is a party, cases involving treaties, and cases involving ships on the high seas and navigable waterways (admiralty cases).
The Supreme Court's power of judicial review, or the ability to declare a Legislative or Executive act in violation of the Constitution, is not explicitly mentioned in the Constitution. However, the Court established this power in the landmark case of Marbury v. Madison in 1803. Through judicial review, the Supreme Court has defined the scope and nature of the powers of the legislative and executive branches of the federal government, ensuring that each branch recognizes the limits of its own power.
The Supreme Court currently consists of nine members: one Chief Justice and eight Associate Justices. These justices are appointed by the President and confirmed by the Senate, typically serving for life. The Supreme Court is the final appellate body over the federal court system, with its decisions binding on all other courts in the nation. Below the Supreme Court are 13 appellate courts, known as the US Courts of Appeals, and 94 district or trial courts, known as US District Courts.
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Federal courts are courts of limited jurisdiction
Article III of the US Constitution establishes the judiciary as one of the three separate and distinct branches of the federal government. The judicial branch, along with the legislative and executive branches, operates within a constitutional system of "checks and balances".
The Judiciary Act of 1789 established the federal court system. The First Congress decided that it could regulate the jurisdiction of all Federal courts, and in the Judiciary Act of 1789, Congress established a limited jurisdiction for the district and circuit courts.
Federal trial courts have been established for a few subject-specific areas. Each federal district also has a bankruptcy court for bankruptcy proceedings. Additionally, some courts have nationwide jurisdiction for issues such as tax, claims against the federal government, and international trade.
The US Supreme Court is the highest court in the United States. Article III of the US Constitution created the Supreme Court and authorised Congress to pass laws establishing a system of lower courts. Federal judges (and Supreme Court “justices”) are selected by the President and confirmed “with the advice and consent” of the Senate. They typically hold office for life.
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Federal judges are appointed by the President
Article III of the US Constitution establishes the judicial branch as one of the three distinct branches of the federal government. The three branches—legislative, executive, and judicial—operate within a constitutional system of checks and balances. This means that while each branch is formally independent of the others, they must often cooperate. For example, federal laws are passed by Congress and signed by the President, but it is the judicial branch that decides the constitutionality of these laws and resolves cases involving them.
Article III, Section I of the Constitution states that "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish." This means that while the Constitution establishes the Supreme Court, it allows Congress to decide how to organise it and to create a system of lower courts. Congress first exercised this power in the Judiciary Act of 1789, which established a Supreme Court with six justices and created the lower federal court system.
Federal judges, including Supreme Court justices, are appointed by the President and confirmed by the Senate. They typically hold office for life, and their salaries cannot be decreased during their term of office. These measures are intended to protect the independence of the judiciary from political interference.
The Supreme Court is the highest court in the United States, with the power to decide appeals on all cases brought in federal court or those brought in state court but dealing with federal law. There are 13 appellate courts below the Supreme Court, called US courts of appeals, and 94 district or trial courts, called US district courts.
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The Judiciary Act of 1789 established a Supreme Court with six justices
Article III of the US Constitution establishes the judiciary as one of the three distinct branches of the federal government. Article III, Section I states that "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish."
The Judiciary Act of 1789 also established the lower federal court system. It set up a circuit court and district court in each judicial district (except in Maine and Kentucky, where the district courts exercised much of the jurisdiction of the circuit courts). The circuit courts, comprising a district judge and two Supreme Court justices, had original jurisdiction over serious crimes and civil cases of at least $500 involving diversity jurisdiction or the United States as the plaintiff in common law and equity. The district courts, on the other hand, had jurisdiction primarily over admiralty cases, petty crimes, and suits by the United States for at least $100.
The Judiciary Act of 1789 also included the Alien Tort Statute, now codified as 28 U.S.C. § 1350, which provides jurisdiction in the district courts over lawsuits by aliens for torts in violation of the law of nations or treaties of the United States. Additionally, it gave the Supreme Court original jurisdiction to issue writs of mandamus (legal orders compelling government officials to act in accordance with the law).
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Frequently asked questions
Article III of the Constitution establishes the federal judiciary.
Article III, Section I of the Constitution states that "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish."
The U.S. Supreme Court is the highest court in the country.

























