Constitution Explorer
Browse the Constitution by preamble, Articles, amendments, and high-value clauses, with issue connections and links to official government analysis and original documents.
Article I, Section 1 — Legislative Vesting Clause
Vests federal legislative powers in a bicameral Congress and is central to separation-of-powers analysis.
Explore provision → Article I §8 cl. 3Article I, Section 8 — Commerce Clause
Empowers Congress to regulate commerce with foreign nations, among the states, and with Indian tribes; its scope is central to federal regulatory power.
Explore provision → Article I §8 cl. 18Article I, Section 8 — Necessary and Proper Clause
Authorizes laws necessary and proper for carrying enumerated federal powers into execution.
Explore provision → Article I §8 cl. 1Article I, Section 8 — Taxing and Spending Power
Authorizes specified federal taxation and spending for debts, common defense, and general welfare, subject to constitutional limits.
Explore provision → Article II §1Article II, Section 1 — Executive Vesting Clause
Vests federal executive power in the President and anchors major debates over presidential authority.
Explore provision → Article III §1Article III, Section 1 — Judicial Power
Vests federal judicial power in one Supreme Court and lower federal courts Congress may establish.
Explore provision → Article VI cl. 2Article VI — Supremacy Clause
Makes the Constitution, valid federal laws, and treaties the supreme law of the land, binding state judges.
Explore provision → Amendment VIIIEighth Amendment — Excessive Bail Clause
Prohibits excessive bail and informs constitutional limits on pretrial detention practices.
Explore provision → Amendment VFifth Amendment — Due Process Clause
Forbids federal deprivation of life, liberty, or property without due process of law.
Explore provision → Amendment VFifth Amendment — Takings Clause
Requires just compensation when private property is taken for public use.
Explore provision → Amendment IFirst Amendment — Religion Clauses
Contains the Establishment and Free Exercise Clauses governing government and religion.
Explore provision → Amendment IFirst Amendment — Speech and Press Clauses
Protects speech and press from government abridgment subject to constitutional doctrine defining protected and unprotected categories.
Explore provision → Amendment XIV §1Fourteenth Amendment — Citizenship Clause
Constitutionalizes national and state citizenship for persons born or naturalized in the United States and subject to its jurisdiction.
Explore provision → Amendment XIV §1Fourteenth Amendment — Due Process Clause
Restricts states from depriving any person of life, liberty, or property without due process of law and is the vehicle for incorporation of many Bill of Rights protections.
Explore provision → Amendment XIV §1Fourteenth Amendment — Equal Protection Clause
Requires states to provide equal protection of the laws and anchors major constitutional equality doctrines.
Explore provision → Amendment IVFourth Amendment — Search and Seizure
Protects against unreasonable government searches and seizures and provides warrant requirements.
Explore provision → Amendment IISecond Amendment — Right to Keep and Bear Arms
Protects the right to keep and bear arms under the Supreme Court’s modern individual-right doctrine.
Explore provision → Amendment VISixth Amendment — Assistance of Counsel
Protects the right to assistance of counsel in criminal prosecutions under constitutional doctrine.
Explore provision → Amendment XTenth Amendment — Reserved Powers
Reserves powers not delegated to the United States nor prohibited to the states to the states or the people.
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