
The United States Constitution's structure establishes a separation of powers, dividing the ability to exercise power to govern between three branches of government. This structure was designed to prevent tyranny and protect the liberty of the governed. The legislative branch, consisting of the Senate and the House of Representatives, creates laws. The executive branch, led by the President and supported by departments such as Treasury and State, enforces these laws. Finally, the judicial branch, headed by the Supreme Court and supported by lower courts, interprets the laws. Each branch has checks and balances over the others, ensuring no single branch accumulates too much power.
| Characteristics | Values |
|---|---|
| Legislative power | Vested in a Congress consisting of a Senate and a House of Representatives |
| Executive power | Vested in the President, who is the Commander-in-Chief of the Army and Navy, and the Militia of several states |
| Judicial power | Vested in the Supreme Court and inferior courts established by Congress |
| Separation of powers | Prevents tyranny and protects liberty |
| Federalism | Answers "how" power is divided |
| Checks and balances | Each branch has the power to limit the other two |
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What You'll Learn

The legislative branch
Congress is the central law-making body, and the other two branches of government—the executive and the judiciary—respond to it. Congress writes and debates the laws that govern the United States, and it can override presidential vetoes with a two-thirds majority. It also has the power to declare war, raise and fund armies, and appoint military leaders.
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The executive branch
The US Constitution's structure reflects the intention of its framers to create a strong national government with three distinct branches, each with its own powers and abilities to check the others. This system of checks and balances helps prevent tyranny and protect individual liberty.
The Constitution grants the President the authority to enforce the laws, but Congress must approve executive appointments. The President can veto congressional laws, but Congress can override the veto with a two-thirds majority vote in both houses. The President also nominates Supreme Court justices, but the Senate must confirm these nominations.
While the executive branch has significant powers, it is also subject to checks and balances from the other branches of government. The Supreme Court can rule on the constitutionality of executive actions and strike down actions by the executive branch. Congress can also restrain executive officials by passing legislation that outlines their duties and sets standards for their actions.
The separation of powers and system of checks and balances ensure that no single branch of government holds too much power and protect against the accumulation of power in a few hands, which James Madison described as "the very definition of tyranny."
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The judicial branch
The US Constitution's structure reflects the separation of powers between the executive, legislative, and judicial branches. The judicial branch, led by the Supreme Court, is tasked with the judicial power to decide cases and controversies. The judges are appointed by the president and confirmed by the Senate, holding office during good behavior and receiving compensation that cannot be diminished.
The Constitution grants the judicial branch specific powers to constrain the powers of the other branches. For example, the Supreme Court can review and decide on the constitutionality of legislative and executive actions, such as in the case of Immigration and Naturalization Service v. Chadha (1983), where the Court determined the procedure for the legislative power of the Federal Government to be exercised. The Court has also ruled on the limits of Congress's ability to authorize the president's actions, as in A.L.A. Schechter Poultry, 295 U.S. 495 (1935).
While the Constitution establishes the Supreme Court, Congress decides the structure and number of lower federal courts and their judges. This interdependence between the judicial and legislative branches showcases the complex nature of the separation of powers. The judicial branch's ability to interpret the law and review the actions of the other branches is a critical check on power, ensuring that the federal government functions effectively while protecting individual liberties.
The separation of powers doctrine is closely tied to the system of checks and balances. Each branch has powers that limit the others, preventing any one branch from becoming too powerful. For instance, while the president can nominate Supreme Court justices, the Senate must confirm them. Similarly, the president can veto bills passed by Congress, but Congress can override the veto with a supermajority vote.
The separation of powers and checks and balances system aims to maintain a delicate balance between the branches of government, promoting efficient governance while safeguarding against the concentration of power. The judicial branch, through its interpretation of the law and review of the other branches' actions, plays a vital role in upholding this constitutional design.
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The system of checks and balances
The US Constitution divides the government into three branches: the legislative, executive, and judicial. This separation of powers is accompanied by a system of checks and balances, which prevents any one branch from becoming too powerful.
The legislative branch makes laws, but the President in the executive branch can veto those laws with a Presidential Veto. The legislative branch can override the president's veto with a two-thirds vote in both Houses. The judicial branch, which consists of the Supreme Court, can then check both branches by declaring a law unconstitutional. The Supreme Court interprets the laws passed by the legislative branch, and the President nominates Supreme Court justices. The legislative branch has the power to approve these nominations, as well as to impeach the President and remove them from office.
The executive branch can declare Executive Orders, which carry the force of law, but the judicial branch can declare these acts unconstitutional. The executive branch, through Federal agencies, is responsible for the day-to-day enforcement and administration of Federal laws. The President is constitutionally obligated to make sure that laws are faithfully executed and uses their powers to do so. They also have the authority to command the Army and Navy to take appropriate military action in the event of a sudden crisis. However, only Congress can declare war and raise, fund, and maintain the armed forces.
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Federalism
The US Constitution establishes three branches of government: the legislative branch (Congress), the executive branch, and the judicial branch. Each branch has separate powers and responsibilities, and they work together to govern the country effectively. The legislative branch is responsible for making laws, the executive branch carries out those laws, and the judicial branch interprets and applies those laws.
The legislative branch, or Congress, consists of the Senate and the House of Representatives. Congress has the power to make laws, but it is limited by the Constitution and the judicial branch. For example, in Marbury v. Madison (1803), the Supreme Court established that it could declare a law passed by Congress unconstitutional if it conflicted with the Constitution.
The executive branch is led by the President of the United States, who is responsible for carrying out the laws passed by Congress and managing domestic affairs and foreign policy. The President has the power to veto bills passed by Congress, but Congress can override a presidential veto with a two-thirds majority vote in both houses.
The judicial branch is established by Article III of the Constitution, which vests judicial power in the Supreme Court and inferior courts established by Congress. The judicial branch is independent of the other branches, and its primary role is to interpret and apply the law. The Supreme Court also has appellate jurisdiction, meaning it can hear appeals from lower federal courts and state courts in certain cases.
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Frequently asked questions
Separation of powers refers to the division of power between the three branches of the US government: the legislative, executive, and judicial branches.
The separation of powers was created to prevent tyranny and protect the liberty of the governed. The Founding Fathers of the United States were influenced by the ideas of French noble and scholar Montesquieu, who advocated for a separation of powers structure.
The legislative branch makes the laws through a Congress consisting of two houses: the Senate and the House of Representatives. The executive branch enforces the laws through the President, Vice President, and various executive departments. The judicial branch interprets the laws through the Supreme Court and other lower courts.
Each branch of government has checks and balances over the other two, preventing any one branch from having too much power. For example, Congress can veto the President's decisions, and the Supreme Court can declare laws made by Congress unconstitutional.
The Constitution serves as the supreme law of the land, and each branch of government must adhere to it. It establishes the structure of the government and outlines the powers and responsibilities of each branch.

























