
The Constitution of the United States establishes the federal judiciary and outlines the types of cases that federal courts can hear. Article III of the Constitution sets up the judicial branch, vesting power in the Supreme Court and outlining what types of cases the federal courts can hear. The Constitution makes it clear that the judicial power of the United States is held by federal courts, not the President, Congress, or the states. The Supreme Court, as the highest court in the land, is the court of last resort for those seeking justice and plays an important role in ensuring that each branch of government recognizes the limits of its power.
| Characteristics | Values |
|---|---|
| Judicial power | The authority to render dispositive judgments |
| Jurisdiction | The authority of a court to exercise judicial power in a specific case |
| Supreme Court's original jurisdiction | Cases affecting ambassadors, other public ministers and consuls, and those in which a state is a party |
| Supreme Court's appellate jurisdiction | All other cases mentioned in Article III, Section 2 |
| Ancillary powers of courts | To punish for contempt of their authority, to issue writs in aid of jurisdiction, to make rules governing their process, to order their own process to prevent abuse, to protect their jurisdiction and officers, to appoint investigators, and to admit and disbar attorneys |
| Judicial review | The power to declare a Legislative or Executive act in violation of the Constitution |
| Judges' tenure and compensation | Judges shall hold their offices during good behaviour and receive compensation that shall not be diminished during their continuance in office |
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What You'll Learn
- The US judicial power is vested in the Supreme Court and inferior federal courts created by Congress
- The judicial power extends to all cases in law and equity, arising under the Constitution
- The judicial power includes the authority to issue writs in aid of jurisdiction
- The power to declare punishment for treason rests with Congress
- The Supreme Court has original jurisdiction in cases affecting ambassadors, and where a state is a party

The US judicial power is vested in the Supreme Court and inferior federal courts created by Congress
The US Constitution establishes the federal judiciary and outlines the scope of judicial power in Article III. This article specifies that the judicial power of the United States shall be vested in two types of courts: a supreme Court and inferior federal courts that are established by Congress.
The Constitution grants the Supreme Court original jurisdiction in specific cases, including those affecting ambassadors, other public ministers, and consuls, as well as those in which a state is a party. In all other cases mentioned in Article III, the Supreme Court has appellate jurisdiction, allowing it to hear cases on appeal involving constitutional or federal law, treaties, and admiralty cases. The Certiorari Act of 1925 gives the Court discretion in deciding whether to hear these cases.
The power to establish inferior federal courts rests with Congress, which can determine their organisation and number. These courts support the Supreme Court and handle a range of cases, including those involving federal law, admiralty, and public ministers.
Judicial power confers on federal courts the authority to decide cases and render judgments that conclusively resolve them. This power includes ancillary powers such as punishing for contempt of authority, issuing writs, making rules governing their processes, and admitting and disbarring attorneys.
Congress has certain powers regarding the judiciary, including the authority to declare the punishment for treason. However, Congress cannot alter final judgments of Article III courts without violating the separation of powers.
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The judicial power extends to all cases in law and equity, arising under the Constitution
Article III of the US Constitution establishes the federal judiciary and outlines the scope of judicial power in the United States. This article states that the judicial power "shall extend to all Cases, in Law and Equity, arising under this Constitution, the Laws of the United States, and Treaties made, or which shall be made, under their Authority".
This means that the judicial power of the United States encompasses all cases pertaining to constitutional law, federal laws, and treaties made under the authority of the Constitution. It grants federal courts the authority to decide cases and render judgments that conclusively resolve legal disputes. The Supreme Court, as the highest court in the land, serves as the final arbiter of justice and plays a crucial role in safeguarding civil rights and liberties by striking down laws that violate the Constitution.
The judicial power also extends to cases involving ambassadors, other public ministers, and consuls, as well as cases of admiralty and maritime jurisdiction. Additionally, it covers controversies in which the United States is a party, disputes between different states, and conflicts between citizens of different states or the same state claiming lands under grants of different states. In these specified cases, the Supreme Court holds original jurisdiction, while in other cases, it exercises appellate jurisdiction.
The Constitution vests the judicial power in the Supreme Court and inferior federal courts established by Congress. This division of judicial power between the Supreme Court and inferior courts ensures a structured and hierarchical approach to the administration of justice. The Constitution grants Congress the authority to determine the organisation of the Supreme Court and the creation of inferior courts as needed.
Furthermore, the judicial power includes certain ancillary powers, such as the ability to punish for contempt of court, issue writs, make rules governing court processes, and admit and disbar attorneys. These ancillary powers enable courts to maintain their authority and ensure the smooth functioning of the judicial system.
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The judicial power includes the authority to issue writs in aid of jurisdiction
The Constitution of the United States specifies that the judicial power is vested in the Supreme Court and inferior federal courts created by Congress. This power allows these courts to exercise authority in specific cases, hear and decide on them, and render dispositive judgments.
Included within the general judicial power are ancillary powers, such as the authority to issue writs in aid of jurisdiction when authorized by statute. This means that courts can issue orders or directives to lower courts or other government entities to ensure compliance with the law or to protect their jurisdiction.
The power to issue writs is not unlimited and is subject to statutory authorizations and common law. For example, in Marbury v. Madison, the Supreme Court held that a section of the Judiciary Act of 1789, which authorized the Court to issue writs of mandamus, was unconstitutional as it enlarged the Court's original jurisdiction.
The issuance of writs is an important tool for courts to enforce their decisions and protect their jurisdiction. It allows them to ensure that their judgments are carried out and that the law is upheld.
The judicial power, including the authority to issue writs, is a crucial aspect of the US Constitution, ensuring the proper functioning of the judicial system and the resolution of cases in a conclusive and authoritative manner.
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The power to declare punishment for treason rests with Congress
The US Constitution outlines the judicial power of the United States, which is vested in the Supreme Court and inferior federal courts created by Congress. The Constitution grants these courts the authority to exercise judicial power in specific cases and render judgments that conclusively resolve these cases. This power extends to a range of cases, including those arising under the Constitution, laws of the United States, and treaties made under their authority. It also covers cases involving ambassadors, public ministers, and consuls, as well as admiralty and maritime jurisdiction.
The Constitution also addresses the punishment for treason, which is defined as levying war against the United States or adhering to their enemies, providing them with aid and comfort. The power to declare the punishment for treason rests with Congress, but the Constitution outlines specific limitations. While Congress can establish penalties for committing treason, they are prohibited from allowing attainder of treason to work corruption of blood or forfeiture beyond the life of the person convicted. "Corruption of blood" refers to a common law concept where family members of a person convicted of treason were prohibited from inheriting or receiving property from the convicted individual. The Constitution ensures that such punishment does not extend beyond the lifetime of the convicted person.
The Treason Clause in the Constitution also includes procedural safeguards to protect against potential government misuse of treason accusations. It stipulates that a person can only be convicted of treason through their own confession in court or the testimony of two witnesses to the same overt act. This requirement ensures that only substantive behaviour can be punished and that the conduct demonstrates a clear intention to betray the United States.
The interpretation and application of the Treason Clause have been the subject of various court cases and legal discussions. One notable case is Cramer, where the government argued for a lenient interpretation to facilitate treason charges during wartime. However, the court emphasised that federal prosecutors could pursue non-treason charges without needing to satisfy the Treason Clause's requirements. The court also asserted that Congress's power to enact prohibitions during wartime was not limited solely to treason charges.
In summary, while Congress has the power to declare the punishment for treason, this power is constrained by constitutional limitations and procedural safeguards. These measures help prevent abuse and ensure that treason convictions are based on substantive evidence and a clear intent to betray the nation.
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The Supreme Court has original jurisdiction in cases affecting ambassadors, and where a state is a party
Article III, Section I of the US Constitution establishes the federal judiciary and 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 grants the Supreme Court the authority to exercise original jurisdiction in specific cases, including those affecting ambassadors and other public ministers, where a state is a party.
The Supreme Court's original jurisdiction in cases affecting ambassadors and other public ministers is specified in Article III, Section 2, Clause 2 of the Constitution. This means that the Supreme Court is the first court to hear these cases, rather than reviewing a lower court's decision. The Court has considered several legal questions related to this jurisdiction, including whether an ambassador or consul must be a party in interest for the Court to have original jurisdiction. In United States v. Ortega, the Court ruled that a prosecution for violating international law and US laws by offering violence to a foreign minister was a public prosecution and not a suit affecting the minister.
Another question relates to the Court's ability to determine the official status of individuals claiming to be ambassadors or consuls. The Court has generally refused to review the Executive Branch's decision on this matter, instead accepting certificates from the Department of State. Additionally, the Court has clarified that its original jurisdiction in these cases applies only to persons accredited to the United States by foreign governments and not the other way around.
The Supreme Court's original jurisdiction in cases where a state is a party is also significant. This includes controversies of a civil nature in which a state is a party, and Congress has historically made the Supreme Court's original jurisdiction exclusive in such matters. One notable case is Ohio ex rel. Popovici v. Agler, where a Rumanian vice-consul contested an Ohio judgment against him for divorce and alimony.
In summary, the US Constitution grants the Supreme Court original jurisdiction in cases affecting ambassadors, other public ministers, and consuls, as well as in controversies where a state is a party. This jurisdiction has been interpreted and refined through various legal questions and landmark cases, shaping the role of the Supreme Court in the US judicial system.
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Frequently asked questions
The Constitution establishes the federal judiciary and outlines what types of cases the federal courts can hear. It states that the judicial power of the United States shall be vested in one Supreme Court and such inferior courts as Congress may establish.
The judicial power extends to all cases in law and equity arising under the Constitution, the laws of the United States, and treaties made under their authority. It includes cases affecting ambassadors, public ministers, and consuls, as well as cases of admiralty and maritime jurisdiction.
The Supreme Court is the highest court in the land and serves as the court of last resort for those seeking justice. It plays a crucial role in ensuring that each branch of government recognizes its limits and protects civil rights and liberties by striking down laws that violate the Constitution.
Yes, through the process of judicial review established in Marbury v. Madison (1803), the Supreme Court can declare acts of Congress unconstitutional if they violate the Constitution. This power is not explicitly mentioned in the text of the Constitution.

























