U.S. Constitution, Annotated

Read the Preamble to the Constitution and the associated annotations.

ARTICLE I.

Section 1.

THE LEGISLATIVE BRANCH

All legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.

Commentary:  The first three articles of the Constitution divide the powers of the United States government among three separate branches: (1) the legislative branch, represented by Congress; (2) the executive branch, represented by the President; and (3) the judicial branch, represented by the Supreme Court.  This constitutional division, called the separation of powers, is designed to prevent any branch of the government from becoming too powerful.  In addition, the Constitution creates checks and balances by providing the means by which each branch is required to work with the other branches in order to carry out its functions. For example, the President nominates federal judges but the Senate must confirm them.

The two-house – bicameral – Congress was one of the most important compromises of the Constitutional Convention.  The small states at the Convention supported the New Jersey Plan, under which each state would have had the same number of Representatives.  The large states wanted the Virginia Plan, which provided representation based on population.  As a compromise, one house was chosen according to each plan.

Article 1
Section 2.

THE HOUSE OF REPRESENTATIVES

(1) The House of Representatives shall be composed of Members chosen every second Year by the People of the several States, and the Electors in each State shall have the Qualifications requisite for Electors of the most numerous Branch of the State Legislature.

Commentary:  Members of the House of Representatives are elected to two-year terms.  If a person is eligible to vote for the "most numerous branch" of his or her state legislature, he or she also is eligible to vote for members of Congress.   (All states except Nebraska have a two-house state legislature).  The question of who can vote for state legislators is up to the state, subject to the restrictions of the Constitution and federal law, such as the Voting Rights Act of 1965.  The 15th, 19th, 24th, and 26th Amendments forbid the states to deny or restrict a citizen's right to vote because of race, sex, or failure to pay a tax; or age if the person is at least 18 years old.

(2) No Person shall be a Representative who shall not have attained to the Age of twenty five Years, and been seven Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State in which he shall be chosen.

Commentary:  Each state decides for itself the requirements for legal residence, subject to Constitutional limits.  Most Representatives live not only in the state but also in the district from which they are chosen.

(3) Representatives and direct Taxes shall be apportioned among the several States [which may be included within this Union, according to their respective Numbers, which shall be determined by adding to the whole Number of free Persons, including those bound to Service for a Term of Years, and excluding Indians not taxed, three fifths of all other Persons]. The actual Enumeration shall be made within three Years after the first Meeting of the Congress of the United States, and within every subsequent Term of ten Years, in such Manner as they shall by Law direct. The number of Representatives shall not exceed one for every thirty Thousand, but each State shall have at Least one Representative; and until such enumeration shall be made, the State of New Hampshire shall be entitled to chuse three, Massachusetts eight, Rhode-Island and Providence Plantations one, Connecticut five, New-York six, New Jersey four, Pennsylvania eight, Delaware one, Maryland six, Virginia ten, North Carolina five, South Carolina five, and Georgia three.

Commentary:  The effect of this paragraph has been greatly altered both by amendments and by new conditions.  It now provides only three things: (1) the number of Representatives given to each state shall be based on its population; (2) Congress must see that the people of the United States are counted every ten years; and (3) each state gets at least one Representative.

The words "and direct taxes" mean poll taxes.  The 16th Amendment gives Congress the right to tax persons according to the size of their own income rather than according to the population of the state in which they happen to live. 

In reference to "three-fifths of all other persons," the "other persons" meant slaves.  Since there are no longer any slaves, this part of the paragraph no longer has any meaning. 

The requirement that there shall be no more than one Representative for every 30,000 persons no longer has any practical force.  In 1929, Congress fixed the total number of Representatives at 435, and it has remained there ever since.

(4) When vacancies happen in the Representation from any State, the Executive Authority thereof shall issue Writs of Election to fill such Vacancies.

Commentary:  If a vacancy occurs in a House seat, the state governor must call a special election to fill it.  However, if the next regularly scheduled election is to be held soon, the governor may allow the seat to remain empty rather than call a special election.

(5) The House of Representatives shall chuse their Speaker and other Officers; and shall have the sole Power of Impeachment. 

Commentary:  The House chooses an officer called the Speaker to lead meetings.  The House alone has the power to bring impeachment charges against a federal official. It has impeached 16 federal officers, including two presidents, Andrew Johnson in 1868 and William Jefferson Clinton in 1998.  The Senate tries impeachment cases.

Article 1
Section 3.

THE SENATE

(1) The Senate of the United States shall be composed of two Senators from each State, [chosen by the Legislature thereof,] for six Years; and each Senator shall have one Vote.

Commentary:  The Constitution at first provided that each state legislature should pick the state's two Senators.  The 17th Amendment changes this by providing for the voters of each state to choose their own Senators.

(2) Immediately after they shall be assembled in Consequence of the first Election, they shall be divided as equally as may be into three Classes. The Seats of the Senators of the first Class shall be vacated at the Expiration of the second Year, of the second Class at the Expiration of the fourth Year, and of the third Class at the Expiration of the sixth Year; so that one third may be chosen every second Year; [and if Vacancies happen by Resignation, or otherwise, during the Recess of the Legislature of any State, the Executive thereof may make temporary Appointments until the next Meeting of the Legislature, which shall then fill such Vacancies].

Commentary:  Senators are elected to six-year terms.  Every two years, one-third of the Senators are elected, and two-thirds are holdovers.  This arrangement makes the Senate a continuing body, unlike the other House, whose entire membership is elected every two years.  The 17th Amendment changed the method of filling vacancies.  The governor chooses a Senator until the people elect one.

(3) No Person shall be a Senator who shall not have attained to the Age of thirty Years, and been nine Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State for which he shall be chosen.

Commentary:  In 1806, Henry Clay of Kentucky was appointed to fill an unexpired term in the Senate.  He was only 29, a few months younger than the minimum age, but no one challenged the appointment.  In 1793, Albert Gallatin was elected to the Senate from Pennsylvania.  He was barred from taking office because he had not been a citizen for nine years.

(4) The Vice President of the United States shall be President of the Senate, but shall have no Vote, unless they be equally divided.

Commentary:  The Vice President serves as president of the Senate.  He votes only when a tie vote occurs.  The Vice President's power to break ties can be important.  In 1789, for example, Vice President John Adams cast the vote that decided the President could remove Cabinet members without Senate approval.  

(5) The Senate shall chuse their other Officers, and also a President pro tempore, in the Absence of the Vice President, or when he shall exercise the Office of President of the United States.

Commentary:  The Senate elects an officer called the president pro tempore to lead meetings when the Vice President is absent.

(6) The Senate shall have the sole Power to try all Impeachments. When sitting for that Purpose, they shall be on Oath or Affirmation. When the President of the United States is tried, the Chief Justice shall preside: And no Person shall be convicted without the Concurrence of two thirds of the Members present.

Commentary:  The provision that the Chief Justice, rather than the Vice President, shall preside over the Senate when a President is on trial probably grows out of the fact that a Senate conviction of a President would make the Vice President the President.  The phrase "on oath or affirmation" means that Senators are placed under oath when trying impeachment cases, just as jurors are in a regular court trial.

(7) Judgment in Cases of Impeachment shall not extend further than to removal from Office, and disqualification to hold and enjoy any Office of honor, Trust or Profit under the United States: but the Party convicted shall nevertheless be liable and subject to Indictment, Trial, Judgment and Punishment, according to Law.

Commentary:  If an impeached person is found guilty, she or he can be removed from office and forbidden to hold federal office again.  The Senate cannot impose any other punishment, but the person may also be tried in regular courts.  The Senate has convicted seven persons, all of them judges. All these men were removed from office, but only two of them were disqualified from holding any federal office.

Article I
Section 4.

ORGANIZATION OF CONGRESS

(1) The Times, Places and Manner of holding Elections for Senators and Representatives, shall be prescribed in each State by the Legislature thereof; but the Congress may at any time by Law make or alter such Regulations, [except as to the Places of chusing Senators].

Commentary:  As long as state legislatures chose the Senators, it would not do to let Congress fix the place of choosing.  This would have amounted to giving Congress the power to tell each state where to locate its capital.  The words "except as to the places of choosing Senators" were set aside by the 17th Amendment.

(2) The Congress shall assemble at least once in every Year, [and such Meeting shall be on the first Monday in December,] unless they shall by Law appoint a different Day.

Commentary:  In Europe, monarchs could keep parliaments from meeting, sometimes for many years, simply by not calling them together.  This is the reason for the requirement that the Congress of the United States must meet at least once a year.  The 20th Amendment changed the date of the opening day of the session to January 3, unless Congress sets another date by law.

Article I
Section 5.

(1) Each House shall be the Judge of the Elections, Returns and Qualifications of its own Members, and a Majority of each shall constitute a Quorum to do Business; but a smaller Number may adjourn from day to day, and may be authorized to compel the Attendance of absent Members, in such Manner, and under such Penalties as each House may provide.

Commentary:  Each house determines if its members are constitutionally qualified and have been properly elected.  In judging the qualifications of its members, each house may consider only the age, citizenship, and residence requirements set forth in the Constitution. In acting on motions to expel a member, however, either house of Congress may consider other matters bearing on that member's fitness for office. Discussion and debate can go on whether a quorum is present or not, as long as a quorum is present for the final vote.

(2) Each House may determine the Rules of its Proceedings, punish its Members for disorderly Behaviour; and, with the Concurrence of two thirds, expel a Member.

Commentary:  Each house makes its own rules.  For example, the House of Representatives puts strict time limits on debate to speed up business.  It is much more difficult to end debate in the Senate. By Senate rules, a Senator may speak as long as he or she wishes unless the Senate votes for cloture, a motion to end debate.  On most matters, cloture requires a vote of 60 Senators, or three-fifths of the total Senate membership. Either house can expel one of its members by a two-thirds vote.

(3) Each House shall keep a Journal of its Proceedings, and from time to time publish the same, excepting such Parts as may in their Judgment require Secrecy; and the Yeas and Nays of the Members of either House on any question shall, at the Desire of one fifth of those Present, be entered on the Journal.

Commentary:  The House Journal and the Senate Journal are published at the end of each session of Congress.  They list all the bills and resolutions considered during the session, as well as every vote.   All messages from the President to Congress also are included.

Of more importance, the Congressional Record is published daily and includes verbatim transcripts of the debates.

(4) Neither House, during the Session of Congress, shall, without the Consent of the other, adjourn for more than three days, nor to any other Place than that in which the two Houses shall be sitting.

Article I
Section 6.

(1) The Senators and Representatives shall receive a Compensation for their Services, to be ascertained by Law, and paid out of the Treasury of the United States.  They shall in all Cases, except Treason, Felony and Breach of the Peace, be privileged from Arrest during their Attendance at the Session of their respective Houses, and in going to and returning from the same; and for any Speech or Debate in either House, they shall not be questioned in any other Place.

Commentary:  The privilege of immunity (freedom from arrest) while going to and from congressional business has little importance today.  Members of Congress, like anyone else, may be arrested for breaking the law.  They may be tried, convicted, and sent to prison.

Congressional immunity from charges of libel and slander remains important.  Libel is an untrue written statement that damages a person's reputation.  Slander is a spoken statement that does so.  Immunity under the speech and debate clause means that members of Congress may say whatever they wish in connection with congressional business without fear of being sued.  This immunity extends to anything said by members during debate, in an official report, or while voting.

(2) No Senator or Representative shall, during the Time for which he was elected, be appointed to any civil Office under the Authority of the United States, which shall have been created, or the Emoluments whereof shall have been encreased during such time; and no Person holding any Office under the United States, shall be a Member of either House during his Continuance in Office.

Commentary:  These provisions keep members of Congress from creating jobs to which they can later be appointed, or while serving in Congress from raising salaries of jobs they hope to hold in the future, and from holding office in the other branches of the government.

In 1909, Senator Philander C. Knox resigned from the Senate to become Secretary of State.  But the salary of the Secretary of State had been increased during Knox's term as Senator.  In order that Knox might accept the post, Congress withdrew the salary increase for the period of Knox's unfinished term.

Article I
Section 7.

(1) All Bills for raising Revenue shall originate in the House of Representatives; but the Senate may propose or concur with Amendments as on other Bills.

Commentary:  Tax bills must originate in the House.  The tradition that tax laws should originate in the lower house of the legislature comes from England.  There, the lower house – the House of Commons – is more likely to reflect the people's wishes because the people elect its members.  They do not elect the upper house, the House of Lords.  In the United States, since the adoption of the 17th Amendment, this rule has little importance because the people elect both the Senate and the House.  In addition, the Senate can amend a tax bill to such an extent that, in effect, it rewrites the whole measure.

(2) Every Bill which shall have passed the House of Representatives and the Senate, shall, before it become a Law, be presented to the President of the United States; If he approve he shall sign it, but if not he shall return it, with his Objections to that House in which it shall have originated, who shall enter the Objections at large on their Journal, and proceed to reconsider it. If after such Reconsideration two thirds of that House shall agree to pass the Bill, it shall be sent, together with the Objections, to the other House, by which it shall likewise be reconsidered, and if approved by two thirds of that House, it shall become a Law. But in all such Cases the Votes of both Houses shall be determined by yeas and Nays, and the Names of the Persons voting for and against the Bill shall be entered on the Journal of each House respectively. If any Bill shall not be returned by the President within ten Days (Sundays excepted) after it shall have been presented to him, the Same shall be a Law, in like Manner as if he had signed it, unless the Congress by their Adjournment prevent its Return, in which Case it shall not be a Law.

Commentary:  A bill passed by Congress goes to the President for the President's signature.  If the President disapproves the bill, he has 10 days not counting Sundays to return it to the chamber which originated it with a statement of the objections.  This action is called a veto.  Congress can pass a law over the President's veto by a two-thirds vote of each house of those members present.  The President can also let a bill become a law without signing it merely by letting 10 days pass.  But a bill sent to the President during the last 10 days of a session of Congress cannot become a law unless it is signed.  If a bill the President dislikes reaches the President near the end of the session, the bill may simply be held unsigned.  When Congress adjourns, the bill is killed.  This practice is known as a pocket veto.

(3) Every Order, Resolution, or Vote to which the Concurrence of the Senate and House of Representatives may be necessary (except on a question of Adjournment) shall be presented to the President of the United States; and before the Same shall take Effect, shall be approved by him, or being disapproved by him, shall be repassed by two thirds of the Senate and House of Representatives, according to the Rules and Limitations prescribed in the Case of a Bill.

Article I
Section 8.

POWERS GRANTED TO CONGRESS

The Congress shall have Power

(1) 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; but all Duties, Imposts and Excises shall be uniform throughout the United States;

Commentary:  Duties are taxes on goods coming into the United States.  Excises are taxes on sales, use, or production, and sometimes on business procedures or privileges.  For example, corporation taxes, cigarette taxes, and amusement taxes are excises.  Imposts is a general tax term that includes both duties and excises.

(2) To borrow Money on the credit of the United States;

(3) To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes;

Commentary:  This section, called the commerce clause, gives Congress some of its most important powers.  The Supreme Court has interpreted commerce to mean not only trade but also all kinds of commercial activity.  The Supreme Court has ruled that "commerce among the several states" – interstate commerce – includes not only transactions across state boundaries but also any activity that affects commerce in more than one state.  The power to regulate this commerce is the power to encourage, promote, protect, prohibit, or restrain it.  As a result, Congress can pass laws and provide funds to improve waterways, enforce air safety measures, and forbid interstate shipment of certain goods.   It can regulate the movement of people, trains, stocks, bonds, television signals, and the Internet.  Congress has made it a federal crime to flee across state lines from state or local police to use interstate commerce for a wide variety of crimes.  It also has forbidden people who operate interstate facilities or who serve interstate passengers to treat customers unfairly because of race, gender, national origin, old age, or physical disability.

(4) To establish an uniform Rule of Naturalization, and uniform Laws on the subject of Bankruptcies throughout the United States;

(5) To coin Money, regulate the Value thereof, and of foreign Coin, and fix the Standard of Weights and Measures;

Commentary:  From this section, along with the section that allows Congress to regulate commerce and to borrow money, Congress gets its right to charter national banks to establish the Federal Reserve System.

(6) To provide for the Punishment of counterfeiting the Securities and current Coin of the United States;

Commentary:  Securities are government bonds.

(7) To establish Post Offices and post Roads;

(8) To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries;

Commentary:  Books, music, photographs, videotape, digital video discs (DVDs), and films may be copyrighted under this rule.

(9) To constitute Tribunals inferior to the Supreme Court;

Commentary:  Examples of federal courts "inferior to the Supreme Court" include the United States district courts and U.S. Courts of Appeals.

(10) To define and punish Piracies and Felonies committed on the high Seas, and Offences against the Law of Nations;

Commentary:  Congress, rather than the states, has jurisdiction over crimes committed at sea.

(11) To declare War, grant Letters of Marque and Reprisal, and make Rules concerning Captures on Land and Water;

Commentary:  Only Congress can declare war.  However, the President, as Commander-in-Chief, has engaged the United States in wars without a formal declaration of war by Congress.   Undeclared wars include the Korean War (1950-1953), the Vietnam War (1957-1975), and the Gulf Wars (1991, 2003).

Letters of marque and reprisal are documents that authorize private vessels to attack enemy shipping. They are no longer issued.

(12) To raise and support Armies, but no Appropriation of Money to that Use shall be for a longer Term than two Years;

(13) To provide and maintain a Navy;

(14) To make Rules for the Government and Regulation of the land and naval Forces;

(15) To provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions;

Commentary:  Congress has given the President power to decide when a state of invasion or insurrection (uprising) exists.  At such times, the President can call out the state militia, now known as the National Guard, as well as the regular armed forces.

(16) To provide for organizing, arming, and disciplining, the Militia, and for governing such Part of them as may be employed in the Service of the United States, reserving to the States respectively, the Appointment of the Officers, and the Authority of training the Militia according to the discipline prescribed by Congress;

Commentary:  The federal government helps the states maintain the militia, also known as the National Guard.  Until 1916, the states controlled the militia entirely.  That year, the National Defense Act provided for federal funding of the Guard and for drafting the Guard into national service under certain circumstances.

(17) To exercise exclusive Legislation in all Cases whatsoever, over such District (not exceeding ten Miles square) as may, by Cession of particular States, and the Acceptance of Congress, become the Seat of the Government of the United States, and to exercise like Authority over all Places purchased by the Consent of the Legislature of the State in which the Same shall be, for the Erection of Forts, Magazines, Arsenals, dock-Yards, and other needful Buildings; And

Commentary:  This section makes Congress the legislative body not only for the District of Columbia, but for federal property on which forts, naval bases, arsenals, and other federal works or buildings are located.

(18) 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.

Commentary:  This section, the famous "necessary and proper" clause, allows Congress to deal with many matters not specifically mentioned in the Constitution.   This flexibility helps explain why the Constitution is one of the oldest written constitutions and why it has needed so few formal amendments.

Article I
Section 9.

POWERS FORBIDDEN TO CONGRESS

(1) The Migration or Importation of such Persons as any of the States now existing shall think proper to admit, shall not be prohibited by the Congress prior to the Year one thousand eight hundred and eight, but a Tax or duty may be imposed on such Importation, not exceeding ten dollars for each Person.

Commentary:  This paragraph refers to the slave trade.  Dealers in slaves, as well as some slaveholders, wanted to make sure that Congress could not stop anyone from bringing African slaves into the country before the year 1808.  That year, Congress did ban the importation of slaves.

(2) The Privilege of the Writ of Habeas Corpus shall not be suspended, unless when in Cases of Rebellion or Invasion the public Safety may require it.

Commentary:  A writ of habeas corpus is a court order that commands officials who have a person in custody to bring the person into court.  The officials must explain to the judge why the person is being restrained.  If their explanation is unsatisfactory, the judge can order the prisoner released.

(3) No Bill of Attainder or ex post facto Law shall be passed.

Commentary:  A bill of attainder is an act passed by a legislature to punish a person without trial.  An ex post facto law is one that makes criminal an act that was not illegal when the act was committed.  This also includes an act that retroactively increases the punishment for a criminal act.

(4) No Capitation, [or other direct,] Tax shall be laid, unless in Proportion to the Census or Enumeration herein before directed to be taken.

Commentary:  A capitation is a tax collected equally from everyone.  It is also called a head tax or poll tax.  The Supreme Court held that this section prohibits an income tax, but the 16th Amendment set aside the effect of the court's decision.

(5) No Tax or Duty shall be laid on Articles exported from any State.

Commentary:  In this sentence, exported means sent to other states or to foreign countries.   The Southern states feared that the new government would tax their exports and that their economies would suffer as a result.  This sentence forbids such a tax.  However, Congress can prohibit shipment of certain items, as well as regulate the conditions of their shipment.

(6) No Preference shall be given by any Regulation of Commerce or Revenue to the Ports of one State over those of another: nor shall Vessels bound to, or from, one State, be obliged to enter, clear, or pay Duties in another.

Today the flag contains 50 stars for the 48 contiguous states plus Alaska and Hawaii.

Today the flag contains 50 stars for the 48 contiguous states plus Alaska and Hawaii.

CommentaryCongress cannot make laws concerning trade that favor one state over another.  Ships going from one state to another need not pay taxes to do so.

(7) No Money shall be drawn from the Treasury, but in Consequence of Appropriations made by Law; and a regular Statement and Account of the Receipts and Expenditures of all public Money shall be published from time to time.

Commentary:  Government money cannot be spent without the consent of Congress.  Congress must provide for the issuance of financial statements from time to time. 

(8) No Title of Nobility shall be granted by the United States: And no Person holding any Office of Profit or Trust under them, shall, without the Consent of the Congress, accept of any present, Emolument, Office, or Title, of any kind whatever, from any King, Prince, or foreign State.

Commentary:  Congress cannot give anyone a title of nobility, such as countess or duke.  Federal officials may not accept a gift, office, payment, or title from a foreign country without the consent of Congress.

Article I
Section 10.

POWERS FORBIDDEN TO THE STATES

(1) No State shall enter into any Treaty, Alliance, or Confederation; grant Letters of Marque and Reprisal; coin Money; emit Bills of Credit; make any Thing but gold and silver Coin a Tender in Payment of Debts; pass any Bill of Attainder, ex post facto Law, or Law impairing the Obligation of Contracts, or grant any Title of Nobility.

(2) No State shall, without the Consent of the Congress, lay any Imposts or Duties on Imports or Exports, except what may be absolutely necessary for executing it's inspection Laws: and the net Produce of all Duties and Imposts, laid by any State on Imports or Exports, shall be for the Use of the Treasury of the United States; and all such Laws shall be subject to the Revision and Controul of the Congress.

Commentary:  Without the consent of Congress, a state cannot tax goods entering or leaving the state except for small fees to cover the cost of inspection.

(3) No State shall, without the Consent of Congress, lay any Duty of Tonnage, keep Troops, or Ships of War in time of Peace, enter into any Agreement or Compact with another State, or with a foreign Power, or engage in War, unless actually invaded, or in such imminent Danger as will not admit of delay.

Commentary:  Only the federal government has the power to make treaties or negotiate with foreign countries.