
The Constitution of the United States is the supreme law of the United States of America. Beginning with the words We the People, it superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. The Constitution is composed of the Preamble, seven articles, and 27 amendments. The first 10 amendments are known as the Bill of Rights. The Constitution's first three articles embody the doctrine of the separation of powers, dividing the federal government into the legislative, executive, and judicial branches. The legislative branch consists of the bicameral Congress, the executive branch consists of the President and subordinate officers, and the judicial branch consists of the Supreme Court and other federal courts. The Constitution also outlines the rights and responsibilities of state governments and their relationship with the federal government. More than 11,000 amendments to the Constitution have been proposed, but only 27 have been ratified.
| Characteristics | Values |
|---|---|
| Number of amendments | 27 |
| Number of amendments forming the Bill of Rights | 10 |
| Date of ratification of the Bill of Rights | 15 December 1791 |
| Date the Constitution superseded the Articles of Confederation | 4 March 1789 |
| Number of articles | 7 |
| Number of specific limits on congressional power listed in Article I, Section 9 | 8 |
| Powers of Congress | To define and punish piracies and offenses against the Law of Nations, to declare war and make rules of war |
| Example of an amendment | "Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction." |
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What You'll Learn

The US Constitution's seven articles
The US Constitution is made up of a preamble, seven articles, and 27 amendments. The first 10 amendments are known as the Bill of Rights. The seven articles form the structural constitution and were signed on September 17, 1787, and ratified on June 21, 1788.
Article I establishes the legislative branch of the federal government, the US Congress, and defines its powers. This includes the ability to collect taxes, regulate commerce, and declare war. It also lays out the structure and powers of the House of Representatives and the Senate.
Article II establishes the executive branch of the federal government, led by the President. It outlines the powers of the President, including the role of Commander in Chief of the armed forces, the ability to appoint federal officers, and the power to make treaties with the approval of the Senate.
Article III establishes the judicial branch of the federal government, the US court system, with the Supreme Court at its head. It defines the types of cases that federal courts can hear and outlines the crime of treason.
Article IV outlines the relationship between the states and the federal government. It includes the Full Faith and Credit Clause, which requires states to recognize each other's laws and legal acts, and the Extradition Clause, which requires states to return fugitives to the state where they are charged with a crime. It also includes the Republican Guarantee Clause, which ensures that each state has a republican form of government.
Article V outlines the process for amending the Constitution. Amendments can be proposed by two-thirds of both houses of Congress or by a national convention requested by two-thirds of the state legislatures. The proposed amendment is then sent to the states for ratification, and it becomes part of the Constitution once ratified by three-fourths of the states.
Article VI establishes the Constitution, federal laws, and treaties as the supreme law of the land. It also states that federal officials must swear to uphold the Constitution and that the US Constitution supersedes state laws and constitutions.
Article VII outlines the process for ratifying the Constitution. It sets out the requirement that nine states must ratify the document for it to take effect and establishes the method for electing members of the Electoral College, which then chooses the President.
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Amendments: 27 total, 10 in the Bill of Rights
The US Constitution is the supreme law of the United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. The Constitution is composed of the Preamble, seven articles, and 27 amendments. The first 10 amendments are known as the Bill of Rights.
The first three articles embody the doctrine of the separation of powers, dividing the federal government into three branches: the legislative, consisting of the bicameral Congress (Article I); the executive, consisting of the President and subordinate officers (Article II); and the judicial, consisting of the Supreme Court and other federal courts (Article III).
The Bill of Rights was ratified on December 15, 1791, and includes the following:
- Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof.
- Congress shall make no law abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
- A well-regulated militia being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
- In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury of the State and district wherein the crime shall have been committed.
- Excessive bail shall not be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted.
- The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated.
- No soldier shall, in time of peace be quartered in any house, without the consent of the owner, nor in time of war, but in a manner to be prescribed by law.
- The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people.
- The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
Since the Bill of Rights, 17 additional amendments have been added to the Constitution, making 27 in total.
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The legislative, executive, and judicial branches
The Constitution of the United States is the supreme law of the United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. The Constitution's first three articles embody the doctrine of the separation of powers, dividing the federal government into three branches: the legislative, executive, and judicial.
The legislative branch is made up of the House and Senate, known collectively as the Congress. It is responsible for making all laws, declaring war, regulating interstate and foreign commerce, and controlling taxing and spending policies.
The executive branch consists of the President, their advisors, and various departments and agencies. This branch enforces the laws of the land. The President is the head of state, leader of the executive branch, and commander-in-chief of the United States Armed Forces. The Vice President supports the President and assumes their role if they are unable to serve. The executive branch also includes executive departments, independent agencies, and other boards, commissions, and committees.
The judicial branch includes the Supreme Court and other federal courts, such as the 13 appellate courts and 94 district courts. The Supreme Court is the highest tribunal for constitutional interpretation of fundamental law. The judicial branch has the authority to decide the constitutionality of federal laws and resolve cases involving federal laws. Judges depend on the executive branch to enforce court decisions.
These three branches operate within a constitutional system of "checks and balances," ensuring that no individual or group has too much power. While each branch is formally separate, the Constitution often requires cooperation among them. Federal laws, for example, are passed by Congress and signed by the President. The judicial branch can decide the constitutionality of these laws, and Congress can override a presidential veto on legislation. The President can also be removed from office by Congress in exceptional circumstances.
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Congress's powers and limitations
The Constitution of the United States is the supreme law of the United States of America. It is composed of a preamble, seven articles, and 27 amendments. The first three articles embody the doctrine of the separation of powers, dividing the federal government into three branches: the legislative, executive, and judicial.
The legislative branch, consisting of the bicameral Congress, is responsible for creating laws. Congress's powers are implemented by the United States Constitution, rulings of the Supreme Court, and other factors like history and custom. Some powers are explicitly defined by the Constitution and are called enumerated powers, while others are assumed to exist and are called implied powers.
Article I of the Constitution sets forth most of the powers of Congress, with numerous explicit powers enumerated in Section 8. These include the power to:
- Lay and collect taxes, duties, imposts, and excises, to pay the debts and provide for the common defence and general welfare of the United States
- Borrow money on the credit of the United States
- Regulate commerce with foreign nations, among the states, and with Native American tribes
- Establish a uniform rule of naturalization and uniform laws on bankruptcy throughout the United States
- Coin money, regulate its value, and fix the standard of weights and measures
- Provide for the punishment of counterfeiting the securities and current coin of the United States
- Promote the progress of science and useful arts by securing exclusive rights to authors and inventors
Congress also has the power to admit new states into the Union, propose amendments to the Constitution, and choose the president or vice president if no one receives a majority of Electoral College votes.
However, there are limitations to Congressional power. Article I, Section 9 lists eight specific limits, including the prohibition on Congress from passing laws that restrict the immigration or exportation of people or allow titles of nobility. The Supreme Court has also interpreted the Commerce Clause and Necessary and Proper Clause in Article One to prevent Congress from enacting legislation that is neither expressly allowed by the enumerated powers nor denied in the limitations.
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The Necessary and Proper Clause
The US Constitution is composed of a preamble, seven articles, and 27 amendments. The Necessary and Proper Clause, also known as the Elastic Clause, Coefficient Clause, or Basket Clause, is a clause in Article I, Section 8 of the United States Constitution. It reads:
> "The Congress shall have Power... To make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government of the United States, or in any Department or Officer thereof."
The draft clause provoked controversy during discussions on the proposed constitution, and its inclusion became a focal point of criticism for those opposed to the ratification of the constitution. Anti-Federalists expressed concern that the clause would grant the federal government boundless power, while Federalists argued that the clause would permit only the execution of powers that had been granted by the constitution. Alexander Hamilton and James Madison supported the latter interpretation, with Madison arguing that without the clause, the constitution would be a "dead letter". Patrick Henry took the opposing view, stating that the clause would lead to limitless federal power, which would inevitably menace individual liberty.
The landmark case of McCulloch v. Maryland (1819) further solidified the interpretation of the Necessary and Proper Clause as granting implied powers to Congress. In this case, the Supreme Court ruled that the clause permitted the federal government to take action that would "enable [it] to perform the high duties assigned to it [by the Constitution] in the manner most beneficial to the people," even if that action is not explicitly allowed by the enumerated powers or expressly denied in the limitations on Congress. The Court held that Congress has an implied power to establish a bank, as a bank is a proper and suitable instrument to aid in Congress's enumerated power to tax and spend. This case reaffirmed Hamilton's view that legislation reasonably related to express powers was constitutional.
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Frequently asked questions
There are seven articles in the US Constitution. There have been 27 amendments to the Constitution, beginning with the Bill of Rights, the first 10 amendments, ratified in 1791.
The first three articles embody the doctrine of the separation of powers, in which the federal government is divided into three branches: the legislative, consisting of the bicameral Congress (Article I); the executive, consisting of the president and subordinate officers (Article II); and the judicial, consisting of the Supreme Court and other federal courts (Article III). Article IV, Article V, and Article VI embody concepts of federalism, describing the rights and responsibilities of state governments, the states in relation to the federal government, and the shared process.
The first 10 amendments are known as the Bill of Rights. The other 17 amendments cover a range of topics, including the powers of Congress, the rights of citizens, and the eligibility requirements for holding office.
The Bill of Rights is the first 10 amendments to the US Constitution. It was ratified in 1791 and includes guarantees of freedom of speech, freedom of religion, the right to keep and bear arms, and the right to a trial by jury, among other rights.
The Constitution of the United States is the supreme law of the land. It establishes the structure and powers of the federal government, outlines the rights and responsibilities of the states, and protects the fundamental rights of citizens. It was created to form a more perfect union, establish justice, ensure domestic tranquility, provide for the common defence, promote the general welfare, and secure the blessings of liberty for the people.











































