
The Supremacy Clause, or Article VI, Clause 2 of the United States Constitution, establishes that the Constitution, federal laws, and treaties made under the authority of the United States take precedence over conflicting state laws and constitutions. This clause, which forms part of the Constitution's introductory paragraphs, outlines the priority of federal authority and serves as a cornerstone of the US federal political structure. It ensures that federal acts and laws take priority over state acts and laws, and that the Supreme Court has the power to review and invalidate statutes that violate the Constitution. The Supremacy Clause also highlights the role of the Judicial system in interpreting the Constitution and ensuring that Congress cannot pass laws that contradict it.
| Characteristics | Values |
|---|---|
| Name of the section | Supremacy Clause |
| Location | Article VI, Clause 2 of the Constitution of the United States |
| What it establishes | That the Constitution, federal laws, and treaties made under the authority of the United States take priority over conflicting state laws |
| Who is bound by it | State courts and state constitutions |
| What it assumes | The priority of federal authority, as long as it is expressed in the Constitution |
| What it includes | Federal statutes enacted by Congress |
| What it addresses | The legal status of laws, treaties, and the Constitution itself |
| What it nullifies | Federal law that is in conflict with the Constitution (this is disputed) |
| What it gives power to | The United States Supreme Court to exercise judicial review and invalidate statutes that violate the Constitution |
| What it does not give power to | Congress to pass laws contrary to the Constitution |
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What You'll Learn

The Supremacy Clause
The Supreme Court has relied on the Supremacy Clause in several cases to establish the supremacy of federal law and the power of judicial review. For example, in Marbury v. Madison (1803), the Court held that Congress cannot pass laws contrary to the Constitution and that the Judicial system must interpret the Constitution. In Martin v. Hunter's Lessee (1816) and Cohens v. Virginia (1821), the Court affirmed its power to review state court decisions involving issues arising under the Constitution and federal laws, giving it the final say in matters of constitutional interpretation.
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Federal law takes priority over state law
The Supremacy Clause of the US Constitution establishes that federal law takes priority over state law. This is outlined in Article VI, Clause 2, which states that the Constitution, federal laws made under it, and treaties made under US authority constitute the "supreme Law of the Land". This means that federal law takes precedence over conflicting state laws, and state courts and constitutions are subordinate to this supreme law.
The Supremacy Clause assumes the underlying priority of federal authority, provided that this authority is expressed in the Constitution. It is considered a cornerstone of the US federal political structure, emphasising that federal law is the supreme regulator of conduct in the nation. Alexander Hamilton, in Federalist No. 33, wrote that federal laws, by definition, must be supreme for them to function effectively.
The Supremacy Clause also grants the US Supreme Court the power of judicial review. This means that the Court can invalidate a statute if it violates a provision of the Constitution, ensuring that federal statutes and treaties remain within the parameters of the Constitution. The Court has the final say in matters involving federal law and can overrule decisions by state courts.
The Supremacy Clause establishes a hierarchy in which federal law takes precedence over state law in cases of conflict. This hierarchy is emphasised by the Court's ruling in Ableman v. Booth, where it was held that state courts cannot issue rulings that contradict the decisions of federal courts, further cementing the priority of federal law.
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The role of the Judicial system
The Supremacy Clause of the Constitution of the United States (Article VI, Clause 2) establishes that the Constitution, federal laws made under it, and treaties made under the authority of the United States take priority over conflicting state laws. The role of the judicial system is critical in upholding this clause.
Article III of the Constitution establishes the federal judiciary and vests the judicial power of the United States in the Supreme Court and inferior courts established by Congress. The Supreme Court, as the highest court in the land, is the final arbiter of disputes and plays a crucial role in ensuring that the Constitution takes priority.
The power of judicial review, while not explicitly mentioned in the text of the Constitution, is a key tool in the Supreme Court's arsenal. This power allows the Court to declare a Legislative or Executive act in violation of the Constitution. In the landmark case of Marbury v. Madison in 1803, the Supreme Court asserted that Congress cannot pass laws that contradict the Constitution. The Court's interpretation of the Constitution is pivotal in resolving disputes and shaping the legal landscape.
The Supremacy Clause also underscores the role of the judiciary in ensuring federal law takes precedence over state law. In conflicts between federal and state statutes, the Supremacy Clause establishes a clear hierarchy, giving priority to federal law. The Supreme Court, in cases like Ableman v. Booth, has reaffirmed this principle by holding that state courts cannot issue rulings that contradict federal courts, citing the Supremacy Clause.
Additionally, the judicial system plays a vital role in interpreting the Constitution and ensuring that each branch of government respects its limits. The Supreme Court, through judicial review, can strike down laws that violate the Constitution, protecting civil rights and liberties. The Court's decisions have a significant impact on society, shaping the understanding and application of constitutional principles.
In conclusion, the role of the judicial system, particularly the Supreme Court, is indispensable in upholding the Supremacy Clause. Through judicial review, interpretation of the Constitution, and resolving disputes between federal and state laws, the judiciary ensures that the Constitution and federal laws take priority, as established by the Supremacy Clause.
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Federal statutes and treaties
The Supremacy Clause of the US Constitution (Article VI, Clause 2) establishes federal statutes and treaties as the "supreme Law of the Land", taking precedence over any conflicting state laws. This clause emphasizes that federal statutes and treaties are on equal footing, with neither holding superiority over the other. The Supremacy Clause also underscores the role of the judicial system in interpreting and reviewing these federal statutes and treaties, ensuring they remain within the boundaries of the Constitution.
Federal statutes, enacted by Congress, are organized by subject matter in the US Code. These laws are often referred to by common names, such as the Civil Rights Act of 1968 or the USA PATRIOT Act. Before a federal statute is added to the US Code, it undergoes several steps, including approval by the President and publication by the Archivist of the United States.
Treaties, as per the Treaty Clause (Article II, Section 2, Clause 2), are international agreements that are negotiated by the President and ratified with the consent of a two-thirds supermajority in the Senate. While treaties can be used to legislate in areas typically under state authority, they cannot override the Bill of Rights and other constitutional restrictions. The Supreme Court has played a pivotal role in clarifying the enforceability and limitations of treaties, as seen in cases like Missouri v. Holland (1920) and Medellín v. Texas (2008).
The interplay between federal statutes, treaties, and the Constitution is intricate. While federal statutes and treaties are considered "supreme", they must operate within the confines of the Constitution and the federal government's enumerated powers. The Supreme Court, through judicial review, can invalidate a statute or treaty provision that violates constitutional provisions, such as the Tenth Amendment, which delineates the powers of the federal government.
In conclusion, federal statutes and treaties are integral components of the US legal system, given supremacy through the Supremacy Clause. Their implementation and interpretation are carefully navigated to ensure harmony with the Constitution, with the Supreme Court playing a pivotal role in safeguarding the balance between federal and state authority.
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The Tenth Amendment
The amendment's purpose is to reaffirm federalism and limit the federal government to only the powers explicitly granted to it by the Constitution. This amendment was added to address concerns about potential infringements on people's liberties by the new federal government. It reinforces the idea that the federal government does not have any rights or powers beyond those explicitly stated in the Constitution.
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Frequently asked questions
The Supremacy Clause, which is Article VI, Clause 2 of the US Constitution, establishes that the Constitution, federal laws made under it, and treaties made under the authority of the United States take priority over conflicting state laws.
The Supremacy Clause states that the Constitution, federal laws, and treaties made under the authority of the United States constitute the "supreme Law of the Land". It specifies that federal acts take priority over conflicting state acts.
The Supremacy Clause is considered a cornerstone of the US federal political structure. It ensures that federal authority takes precedence over state authority as long as it is expressed in the Constitution. It also establishes the role of the Judicial system in interpreting the Constitution and upholding its supremacy.
The Supremacy Clause grants Congress the power to establish rules that American courts are bound to apply, even if they conflict with state laws. However, these directives must be authorized by the Constitution and must not violate constitutional limits on federal power, such as the Bill of Rights.

























