
The United States Constitution is the foundation of the Federal Government and is often referred to as the supreme law of the land. It was established as a bold experiment in democracy over 200 years ago and has three main functions. Firstly, it establishes a national government consisting of legislative, executive, and judicial branches, each with a system of checks and balances. Secondly, it divides power between the federal government and the states. Thirdly, it protects individual liberties and civil rights, such as prohibiting ex post facto laws and bills of attainder. The Constitution's framework was influenced by the history of early American politics, including the tyranny of British rule, and it continues to shape the country's politics and policies today.
| Characteristics | Values |
|---|---|
| Establishes a national government | Legislative, executive, and judicial branches |
| Checks and balances between branches | |
| Divides power between federal and state governments | |
| Protects individual liberties of citizens | Prohibition of ex post facto laws and bills of attainder |
| Protection of personal liberty from government intrusion | |
| Equality | |
| Civil rights | |
| Provides a framework for the U.S. government | |
| Limits government power | |
| Allows for changes in government |
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What You'll Learn

To establish a federal democratic republic
The United States Constitution established a federal democratic republic. It is the foundation of the Federal Government and is often referred to as the "supreme law of the land". The Constitution is flexible and allows for changes in the government, and it is considered a "living" document that can be amended. However, the framers of the Constitution made it challenging to amend, requiring a two-thirds majority in both houses of Congress and ratification by three-fourths of state legislatures. This anti-majoritarian nature safeguards against the granting of excessive powers to the government and protects the rights of minorities.
The Constitution has three primary functions. Firstly, it establishes a national government with legislative, executive, and judicial branches, each with distinct powers. This division of power between the federal government and the states is a key feature of federalism. Secondly, it provides a system of checks and balances to prevent any one branch from exerting undue influence, addressing the tyranny experienced under British rule. Most significant actions require the involvement of multiple branches, such as the President's ability to veto laws passed by Congress.
Thirdly, the Constitution protects the personal liberties of citizens from government intrusion. These protections are found in the main body of the Constitution, such as in Article I, Sections 9 and 10, which prohibit ex post facto laws and bills of attainder. Additionally, the Bill of Rights, comprising the first ten amendments, further safeguards individual rights. While initially applying only to the federal government, the Supreme Court has since extended these protections to the states.
The Constitution's framework reflects the political culture and values of the time, including the ideals of liberty, equality, and individualism. However, the original document fell short of fully realising these principles, particularly regarding the election of officials and the empowerment of all citizens. Despite this, the Constitution has proven stable and adaptable, enduring and remaining effective in a vastly different world from its creation.
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To protect personal liberty and civil rights
The United States Constitution is a "living" document that serves as the foundation of the Federal Government and the supreme law of the land. It outlines three main functions: establishing a national government, dividing power between the federal government and states, and protecting individual liberties and civil rights.
The protection of personal liberty and civil rights is a key aspect of the Constitution, aiming to safeguard citizens' freedoms from government intrusion. This includes prohibiting ex post facto laws and bills of attainder, which are addressed in Article I, Sections 9 and 10 of the Constitution. The Constitution also includes the Bill of Rights, comprising the first ten amendments, which provide further protections for individual rights. These amendments were adopted shortly after the Constitution was enacted due to concerns about insufficient safeguards for individual rights.
The Constitution's provisions for limited government and the division of powers between the federal and state governments contribute to safeguarding personal liberties. The document establishes a system of checks and balances among the legislative, executive, and judicial branches to prevent tyranny and ensure that most actions require the involvement of multiple branches.
The Constitution's protection of civil rights has been a continuous process, with historically disadvantaged groups often facing challenges in realising the promised equality. Supreme Court cases have played a significant role in interpreting and expanding these rights, such as applying most Bill of Rights protections to the states through the Fourteenth Amendment.
The Constitution's anti-majoritarian nature also helps protect individual liberties by preventing a simple majority from granting excessive powers to the government or infringing on the rights of minorities. This safeguard against majoritarianism ensures that any amendments must pass a high threshold, requiring a two-thirds majority in both houses of Congress and ratification by three-fourths of state legislatures.
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To divide power between federal and state governments
The United States Constitution outlines the framework for the country's federal government and is considered the "supreme law of the land". One of its primary purposes is to divide power between the federal government and the individual states.
The Constitution establishes a federal democratic republic, with three branches of government: the executive, legislative, and judicial. The executive power is invested in the President, the legislative power is given to Congress (the House of Representatives and the Senate), and the judicial power is vested in the Supreme Court and other federal courts created by Congress. This system of checks and balances ensures that no single branch holds too much power, preventing tyranny.
The division of power between the federal and state governments is a key feature of American federalism. Federalism allows for a balance between national unity and state autonomy. While the federal government holds certain powers and responsibilities outlined in the Constitution, states retain their own legislative and judicial powers, allowing them to govern themselves to a certain extent.
This division of power has been a source of political conflict and change throughout American history. The Constitution's broadly worded clauses and changing national needs have often led to disputes over the interpretation of federal and state powers. For example, the 2010 healthcare reform act provoked a constitutional dispute, highlighting the ongoing debate over the balance of power between the federal government and the states.
The Constitution's provisions for limited government and protection of individual liberties further emphasise the importance of dividing power between federal and state entities. The Bill of Rights, comprising the first ten amendments, specifically outlines protections against government intrusion, such as prohibiting ex post facto laws and bills of attainder. These amendments were initially applied only to the federal government but have since been extended to the states through Supreme Court rulings.
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To limit government and prevent tyranny
One of the main reasons for the creation of the US Constitution was to limit government and prevent tyranny. The Constitution's framework was a direct response to the tyranny of British rule, specifically that of a single monarch. The document establishes a national government consisting of three branches: the legislative, the executive, and the judicial. This system of checks and balances is designed to prevent any one branch from becoming too powerful and thus protects against tyranny.
The Constitution also divides power between the federal government and the states, ensuring that neither becomes too powerful. This division of power is a reaction to the weak government of the Articles of Confederation, which preceded the Constitution and proved incapable of unifying the original 13 states into one nation. The Constitution provides a stronger federal government while still preserving the rights of the states.
The framers of the Constitution made it intentionally difficult to amend, requiring a two-thirds majority in both houses of Congress and ratification by three-fourths of state legislatures. This prevents a simple majority from granting the government tyrannical powers, protecting the rights of minorities, and hindering those in office from extending their terms. The Constitution's enduring influence is due in part to its flexibility, allowing for changes in government while preserving a core set of values.
The Constitution also protects the personal liberty of citizens from government intrusion. This is achieved through provisions in the main body of the Constitution, such as Article I, Sections 9 and 10, which prohibit ex post facto laws and bills of attainder. The Bill of Rights, comprising the first ten amendments, further safeguards individual rights and liberties. These amendments were adopted shortly after the Constitution's enactment to address concerns about insufficient protections for individual rights.
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To ensure a system of checks and balances
One of the main reasons for the United States Constitution is to ensure a system of checks and balances that prevents tyranny by any one branch of government. The Constitution divides the federal government into three branches: the executive, legislative, and judicial. This system of separation of powers ensures that no single branch has too much power and provides a framework for the United States government.
The executive power is vested in the President, who can veto laws passed by Congress. The legislative power is given to Congress, which consists of the House of Representatives and the Senate. The judicial power is held by the Supreme Court and other federal courts created by Congress.
Most important actions require the participation of more than one branch of government. For example, while Congress passes laws, the President can veto them. This system of checks and balances is designed to protect against the tyranny of any one branch and to ensure that the government functions effectively.
The Constitution also protects individual liberties and civil rights, such as freedom from ex post facto laws and bills of attainder, which are found in the main body of the Constitution itself. Most protections for individual rights are contained in the Bill of Rights, which constitute the first ten amendments to the Constitution. These amendments were adopted shortly after the Constitution was ratified in response to concerns about the lack of protections for individual rights.
The Constitution's provisions for limited government and the division of power between the federal and state governments further ensure a system of checks and balances. The Constitution is a "living" document that can be amended, although it is intentionally difficult to do so. This makes the Constitution anti-majoritarian, preventing a majority from granting tyrannical powers to the government or easily taking away the rights of minorities.
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Frequently asked questions
The Constitution of the United States is the foundation of the Federal Government and is often called the supreme law of the land. It was established to create a national government consisting of a legislative, an executive, and a judicial branch, with a system of checks and balances among the three branches.
The Constitution also divides power between the federal government and the states, and protects the personal liberty of citizens from government intrusion.
The Constitution is considered a "living" document because it can be amended, allowing for changes in the government. This flexibility has allowed it to remain effective even in a world totally different from when it was written. However, it is intentionally made difficult to amend to prevent a majority from granting tyrannical powers to the government or taking away the rights of minorities.

























