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The Founding and the Constitution

The Constitution

The Constitutional Convention

The Struggle for Ratification

Thirty-nine delegates approved the Constitution on September 17, 1787. The final product of the convention is a short document that lays the foundation for a new government.

The American Constitution is divided into seven parts called articles, each dealing with a specific issue. The bulk of the document—Articles I, II, and III—describe the structures and powers of the three branches of the federal government. The table on the following page summarizes the structure of the Constitution.




I The Legislative Branch
II The Executive Branch
III The Judicial Branch
IV The States and the People
V Changing the Constitution
VI The Supremacy of the Constitution
VII Ratifying the Constitution

Limits on Power

Even though the framers sought to expand the powers of the national government, they did not want the government to be too powerful. So the framers limited governmental power with the following:

  • Federalism: The division of power between the federal government and the states allows the different levels of government to check each other.
  • Specificity: The Constitution grants specific powers to the president, Congress, the states, and the people and explicitly denies them of some other powers.
  • Checks and balances: The framers balanced the power of the government among three separate and independent branches so that no one branch can dominate the others. Further, each branch of government has some specific power to check or limit the power of the others: The president can veto (prevent from becoming law) acts of Congress, Congress can override presidential vetoes, and the Supreme Court has assumed the power of judicial review.
  • The Bill of Rights: The first ten amendments to the Constitution make up the Bill of Rights, which guarantees some fundamental legal rights to all Americans, including the freedoms of speech, assembly, press, and religion.
  • Rules for elections: The Constitution ensures that states and the voters have the power to change the government.
Separation of Powers

The Constitution creates a government with three different branches. This separation of powers ensures that no branch becomes powerful enough to overwhelm the other two. The legislative branch (Congress) makes the laws, the executive branch (the president) enforces the laws, and the judicial branch (the courts) interprets the law. Each branch functions independently from the others, possessing its own powers and area of influence. No branch can accomplish anything of significance without the cooperation of at least one of the others. By dividing power in this way, the framers sought to prevent tyranny: No one person or group can exercise excessive power.

Checks and Balances

The three separate branches limit one another through a series of checks and balances. The framers wanted to make sure that the branches were equally powerful, so they set up rules that enable each branch to stop the others from doing some things. The Constitution contains many examples of checks and balances, as illustrated by the chart on the next page.

Checks and Balances Among the Branches

The Legislative Branch and the Executive Branch

Congress writes laws and can override a presidential veto, has the power of the purse and control over the budget, has the ability to impeach the president, and approves presidential treaties and appointments. The president can veto bills passed by Congress, recommend laws for Congress to pass, and calls for Congress to meet. The president also enforces, or executes, bills passed by Congress.

The Judicial Branch and the Legislative Branch

The courts have assumed the power to declare laws unconstitutional and hear cases relating to disputes arising from laws passed by Congress. Congress approves the judges appointed by the president, sets judicial salaries, and has some power over the structure and jurisdiction of the courts. Congress also has the power to interpret courts’ decisions as legislation.

The Executive Branch and the Judicial Branch

The president appoints judges, puts court decisions into practice, and has the right to pardon those whom the courts have convicted. The courts can declare presidential actions unconstitutional.

The Legislative Branch

The legislative branch—called Congress—is divided into two parts, which are also called houses: the House of Representatives and the Senate.

The House of Representatives

The House of Representatives is meant to be “the people’s house,” or the part of government most responsive to public opinion. A state’s population determines how many representatives it will have in the House. Every member of the House represents a district within a state, and each district has roughly the same number of people. To make sure that the House accurately mirrors the changing population of the states, the Constitution mandates that a census be taken every ten years. Seats in the House are reapportioned, or reassigned, based on new census data to ensure that each House member represents about the same number of people. All 435 seats in the House go up for election every two years.

The Senate

The framers envisioned the Senate as a body of rational deliberation and statesmanship, not subject to the changing moods of the general population, which is why senators are elected every six years instead of every two years. Because the Senate was also intended to serve as a check on excessive democracy, only one-third of the Senate is elected at a time. Every state has two seats in the Senate, regardless of population.

The Powers of Congress

Article I, Section 8, of the Constitution outlines the powers of Congress. These specified powers are sometimes called the enumerated powers. The necessary and proper clause— commonly referred to as the elastic clause—also gives Congress the power to do whatever it deems “necessary and proper” to meet its constitutional mandate.

Example: The federal government spends billions of dollars each year on highway construction, which is not specifically mentioned in the Constitution. Congress justifies funding federal highways through the necessary and proper clause: Federal roads improve transportation, which, in turn, facilitates interstate commerce, a power the Constitution does specifically grant to Congress. In other words, funding federal roads is “necessary and proper” to regulate interstate commerce.

The Constitution gives Congress two important powers:

  1. The power to make laws: Only Congress can make laws. For a bill to become a law, it must first be approved by both the House and the Senate. The bill then goes to the president, who either signs it or vetoes it. Congress can override the president’s veto with a two-thirds vote in both houses.
  2. The power of the purse: Only Congress can tax citizens and spend money raised by taxes.

The Senate has some additional powers: It confirms presidential appointments to key federal offices, including federal judgeships. The Senate also ratifies all treaties.

The Constitution also lists prohibited powers, or things Congress may not do, including:

  • Passing an ex post facto law, which makes something illegal after it has already been done
  • Passing a bill of attainder, which declares a person guilty of a crime
  • Suspending the writ of habeas corpus, which requires police to charge everyone they arrest. Congress can only suspended this writ during times of national emergency.

The Executive Branch

The president heads the executive branch. According to the Constitution, the president has five powers:

  1. Conduct foreign policy
  2. Command the armed forces
  3. Appoint federal judges and other government officials
  4. Veto congressional bills
  5. Grant clemency
The Vice President

The other elected official within the executive branch is the vice president. The vice president has to following responsibilities:

  • Preside over the Senate and casts the deciding vote in case of a tie
  • Become president if the president dies, relinquishes the office, or is otherwise unable to perform the duties

The role of the vice president has evolved over time. Most vice presidents in the past were excluded from policymaking. After World War II, however, most presidents saw the value of including the vice president in discussions on foreign and domestic policy. Recent vice presidents, including Al Gore (1993–2001) and Dick Cheney (2001–2009), have been heavily involved in policymaking.

The Judicial Branch

The Constitution says little about the judicial branch. It names the Supreme Court as the highest court in the land and declares that the head of the court should be the chief justice. But Congress, and not the Constitution, determines the size and structure of the rest of the federal court system.

Appointment to the Bench

To become a federal judge, a person must be appointed by the president and approved by the Senate. Once in office, a judge can only be forced to leave if impeached and convicted. Otherwise, federal judges serve life terms.

Judicial Review

The courts’ power of judicial review—the power to declare laws and presidential actions unconstitutional—is not actually specified in the Constitution. The Supreme Court gave itself this power in the landmark case Marbury v. Madison (1803).

Example: The courts have exercised their power of judicial review throughout American history. The Supreme Court decision Brown v. Board of Education of Topeka, Kansas (1954), for example, ended segregation in public schools. The Supreme Court made use of judicial review by declaring racial segregation in public facilities unconstitutional.


Legislative Branch

Executive Branch

Judicial Branch

The power to make laws The power of the purse The power to conduct foreign policy The power to command the armed forces The power to appoint federal judges and government officials The power to veto bills from Congress The power to grant pardons and clemency The Supreme Court is the most powerful court in the United States


Federalism is a system of government in which the national and state governments share power. The Constitution recognizes state governments and grants them certain powers, making federalism an implicit part of the Constitution.

Example: The national, or federal, government and the state governments share power in a variety of ways. The federal government, for example, has little power in the formation of education policy, leaving each individual state government to set its own education standards. State governments also reflect the political ideologies of their constituents, which is why different states have different laws regarding smoking, capital punishment, euthanasia, gun control, and so on.

Changing the Constitution

Article V of the Constitution explains how Americans can change the Constitution. A change in the Constitution is called an amendment. The framers intentionally made the process of changing the Constitution difficult because they wanted the Constitution to be stable. Although more than 11,000 amendments have been proposed since 1789, only twenty-seven have been approved, or ratified.

Changing the Constitution is a two-step process:

  1. An amendment must be proposed by either a two-thirds vote in both houses of Congress or by conventions called in two-thirds of the states.
  2. The amendment must then be ratified by either the approval of three-fourths of the state legislatures or by special ratifying conventions held in three-fourths of the states.
Informal Methods of Changing the Constitution

Even though only twenty-seven amendments have been ratified, the Constitution has changed in other ways. For example, Congress has given the president the responsibility of submitting a budget. The president has also entered into executive agreements with foreign leaders without getting prior approval or treaty ratification from the Senate. By far the biggest informal change to the Constitution has been the Supreme Court’s assertion of the power of judicial review.

The Bill of Rights

Many states ratified the Constitution in 1788 and 1789 on the condition that Congress amend it to guarantee certain civil liberties. James Madison drafted these first ten amendments himself, which collectively became known as the Bill of Rights. The Bill of Rights safeguards some specific rights of both the American people and the states. The table on the next page summarizes the twenty-seven amendments to the Constitution.



Date of Ratification


1st 1791 Grants freedoms of religion, speech, press, petition, and assembly
2nd 1791 Grants the right to bear arms
3rd 1791 Forbids the quartering of soldiers in citizens’ houses
4th 1791 Grants freedom from unreasonable searches and seizures
5th 1791 Grants the right against self-incrimination, of trial by jury, and of protection of private property
6th 1791 Grants the right to an attorney in any criminal case
7th 1791 Grants the right to a trial by jury in civil cases
8th 1791 Bans excessive bail and cruel and unusual punishment
9th 1791 States that the people’s rights are not limited to those explicitly listed in the Constitution
10th 1791 States that the states’ rights are not limited to those explicitly listed in the Constitution
11th 1798 Limits the jurisdiction of federal courts
12th 1804 Changes the rules for electing the vice president
13th 1865 Abolishes slavery
14th 1868 Defines American citizenship
15th 1870 Extends the right to vote to all male citizens
16th 1913 Allows Congress to levy income taxes
17th 1913 Allows people to elect their senators directly
18th 1919 Prohibits the manufacture, sale, and transport of liquor
19th 1920 Extends the right to vote to all female citizens
20th 1933 Changes the start date of presidential and congressional terms; outlines presidential succession
21st 1933 Repeals Prohibition
22nd 1951 Sets a two-term limit on presidents
23rd 1961 Gives Washington, D.C., electoral votes
24th 1964 Outlaws poll taxes
25th 1967 Changes the order of succession to the presidency
26th 1971 Extends the right to vote to all eighteen-year-old citizens
27th 1992 Limits congressional pay raises

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