
The US Constitution is the nation's fundamental law, and it is the responsibility of the courts to interpret its meaning and the meaning of any laws passed by Congress. The Constitution is designed to ensure that the people's representatives act only within the authority given to Congress. The Supreme Court has the power of judicial review, which allows it to declare governmental actions or laws unconstitutional and prevent their enforcement. This means that state governments and officials cannot pass laws that interfere with the Constitution, laws passed by Congress, or treaties. There are numerous examples of state laws that have been held unconstitutional, such as a Texas law that deprived railroads of due process and equal protection under the law, a Missouri act that violated the constitutional prohibition against the emission of bills of credit by states, and a Mississippi statute that violated the Full Faith and Credit Clause.
| Characteristics | Values |
|---|---|
| Country | United States |
| Constitution | The U.S. Constitution is the nation's fundamental law. It has been amended 27 times since it was first passed. |
| Lawmaking body | Congress is the lawmaking branch of the federal government. |
| Process | A bill is a proposal for a new law or a change to an existing law. Once a bill is introduced, it is assigned to a committee whose members will research, discuss, and make changes to the bill. The bill is then put before that chamber to be voted on. If the bill passes one body of Congress, it goes to the other body to go through a similar process of research, discussion, changes, and voting. Once both bodies vote to accept a bill, they must work out any differences between the two versions. The president then considers the bill. The president can approve the bill and sign it into law, or veto it. If vetoed, in most cases, Congress can vote to override the veto and the bill becomes a law. |
| Courts | The courts play an integral role in maintaining the rule of law. The Supreme Court has the authority to conclusively decide questions of constitutional law through their power of judicial review. |
| Examples of laws against the Constitution | A Texas law that required railroads to pay court costs and attorneys' fees to litigants successfully prosecuting claims against them deprived the railroads of due process and equal protection of the law. |
| A Missouri act, under which certificates in denominations of 50 cents to $10 were issued, payable in discharge of taxes or debts owed to the state, violated the constitutional prohibition against the emission of "bills of credit" by states. | |
| Missouri constitutional provisions that required clergymen to take an oath that they had never been guilty of hostility to the United States, or of certain other acts that were lawful when committed, was void as a bill of attainder and as an ex post facto law. |
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What You'll Learn

State laws that violate constitutional amendments
In the United States, the Supremacy Clause (Article VI, Clause 2) of the Constitution establishes federal law as the "supreme Law of the Land", taking priority over any conflicting state laws. This means that state laws cannot supersede the Constitution, and the federal government has the power to overrule any state laws that contradict it.
Despite this, there have been several instances of state laws being held unconstitutional by the Supreme Court. For example, in Guinn v. United States (1915), an Oklahoma constitutional clause from 1910 was found to violate the Fifteenth Amendment. This clause, which automatically enfranchised voters entitled to vote as of January 1, 1866, and their descendants, was deemed to be a discriminatory denial of the right to vote based on race. In another case, Houston & Texas Cent. Ry. v. Texas (1898), a Texas law requiring railroads to pay court costs and attorneys' fees for litigants who successfully prosecuted claims against them was deemed to deprive the railroads of due process and equal protection under the law.
It is important to note that while the Supremacy Clause establishes the priority of federal law, it also outlines that federal statutes and treaties must abide by the Constitution. This means that the federal government cannot make laws or treaties that violate the constitutional rights of the states, as outlined in the Tenth Amendment.
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The role of the Supreme Court in constitutional law
The US Constitution establishes the federal judiciary, with Article III, Section I stating that "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish." While the Constitution establishes the Supreme Court, it allows Congress to decide how to organise it. The Judiciary Act of 1789, passed by Congress, created a Supreme Court with six justices and established the lower federal court system.
The Supreme Court's role in constitutional law is to interpret and apply the Constitution to cases that come before it. The Court has original jurisdiction over certain cases, such as suits between two or more states or cases involving ambassadors. It also has appellate jurisdiction over almost any other case involving a point of constitutional or federal law. When exercising its appellate jurisdiction, the Court has the discretion to decide whether or not to hear a case.
One of the most important roles of the Supreme Court is to protect civil rights and liberties by striking down laws that violate the Constitution. For example, the Court has ruled that a Texas law requiring railroads to pay court costs and attorneys' fees to litigants successfully prosecuting claims against them deprived the railroads of due process and equal protection of the law. The Court also ensures that popular majorities cannot pass laws that harm or take advantage of unpopular minorities, thus setting limits on democratic government.
Additionally, the Supreme Court plays a crucial role in interpreting the Constitution and shaping public policy. Its decisions can have a profound impact on society, as seen in the case of Tinker v. Des Moines Independent School District (1969), where the Court held that students could not be punished for wearing black armbands to school to protest the Vietnam War. This case affirmed the right to free speech and set a precedent for future cases involving First Amendment rights.
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The process of how a bill becomes a law
In the United States, Congress is the law-making branch of the federal government. A bill is a proposal for a new law or a change to an existing law. The idea for a bill can come from a sitting member of the U.S. Senate or House of Representatives or be proposed during their election campaign. Bills can also be petitioned by people or citizen groups who recommend a new or amended law to a member of Congress representing them.
Once a bill is introduced, it is assigned to a committee whose members will research, discuss, and make changes to the bill. The bill is then put before that chamber to be voted on. If a majority of the Senators approve, the bill is sent to the Assembly. It is referred to a committee for discussion, and if approved there, it goes to the full membership for a vote. If the bill passes one body of Congress, it goes to the other body to go through a similar process of research, discussion, changes, and voting. Once both bodies vote to accept a bill, they must work out any differences between the two versions.
After passing through both houses of Congress, the bill is sent to the President, who can approve the bill and sign it into law or refuse to approve it, which is called a veto. If the President chooses to veto a bill, Congress can vote to override that veto, and the bill becomes a law. However, if the President does not sign off on a bill and Congress is no longer in session, the bill will be vetoed by default, called a pocket veto, which cannot be overridden.
At the state level, the process may differ slightly. For example, in New York, bills are drafted by the staff of the Legislative Bill Drafting Commission, interest groups, or lawyers in state agencies and the executive branch. Bills are introduced into a committee, usually by legislators or standing committees of the Senate and Assembly, except for the Executive Budget, which is submitted directly by the Governor. After introduction in the Senate, a bill is sent to the appropriate standing committee for evaluation and a decision on whether to send it to the Senate floor for a final decision. If approved by the Senate, the bill is sent to the Assembly, where it goes through a similar process of committee discussion and voting. If the bill is approved in the Assembly without amendment, it goes to the Governor, who has ten days to sign or veto it. If the Governor does not act within the ten-day period, the bill becomes law automatically. Vetoed bills can be returned to the house that first passed them, and they can become law if two-thirds of the members of each house vote to override the veto.
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The power of the federal government
The federal government of the United States is composed of three distinct branches: the legislative, the executive, and the judiciary. The powers of these three branches are defined and vested by the US Constitution, which has been in continuous effect since May 4, 1789. The Constitution outlines the powers and responsibilities of each branch, with the legislative branch (Congress) responsible for creating laws, the executive branch under the President able to veto legislation, and the judiciary, led by the Supreme Court, tasked with interpreting the Constitution and resolving disputes.
The legislative branch, comprising the House of Representatives and the Senate, is responsible for proposing, debating, and passing bills into laws. All legislative bills for raising revenue must originate in the House, while the Senate holds exclusive powers such as approving presidential appointments and drafting legislation related to treaties. A bill must pass through both chambers, and any differences between their respective versions must be reconciled before it can become law.
The executive branch, led by the President, has the power to execute the laws created by the legislative branch. The President can either approve a bill and sign it into law or veto it. In most cases, Congress can override a presidential veto with a two-thirds majority vote in both chambers. The executive branch also includes various departments and agencies that carry out specific functions, such as national defence, law enforcement, and foreign policy.
The judicial branch, headed by the Supreme Court, is responsible for interpreting the laws and ensuring they align with the Constitution. The federal court system includes inferior federal courts established by Congress and the Supreme Court, which is the highest judicial authority in the country. The Supreme Court resolves disputes over the interpretation of laws and the Constitution, including those related to federal-state relations and the limits of federal power.
Since the American Civil War, the powers of the federal government have expanded, with significant shifts occurring during different eras, such as the post-Civil War period, the post-New Deal era, and the era from the Rehnquist Court to the present. The passage of amendments like the Thirteenth and Fourteenth Amendments also expanded federal power by granting Congress the authority to enforce constraints on state governments and protect the fundamental rights of citizens.
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The role of the president in the lawmaking process
The law-making process in the United States is a complex and lengthy procedure. While Congress is the law-making branch of the federal government, the president also has a significant role to play in this process. A bill is a proposal for a new law or a change to an existing law. The idea for a bill can come from a sitting member of the U.S. Senate or House of Representatives, be proposed during their election campaign, or be petitioned by citizens or groups who recommend a new or amended law to a member of Congress that represents them. Once a bill is introduced, it is assigned to a committee whose members will research, discuss, and make changes to the bill. The bill is then put before that chamber to be voted on. If the bill passes one body of Congress, it goes to the other body to go through a similar process of research, discussion, changes, and voting. Once both bodies vote to accept a bill, they must work out any differences between the two versions.
The president then considers the bill. At this stage, the president has the power to approve the bill and sign it into law or refuse to approve it by exercising their veto. If the president chooses to veto a bill, Congress can, in most cases, vote to override that veto, and the bill becomes a law. However, if the president does not sign off on a bill and it remains unsigned when Congress is no longer in session, the bill will be vetoed by default, known as a "pocket veto," which cannot be overridden by Congress.
The Senate and the House have some procedural differences in how they process legislation. While both chambers are equal in their functions, only the House can initiate tax and revenue-related legislation. In contrast, the Senate is the only body that can draft legislation related to presidential nominations and treaties. The House processes legislation through a majority vote, while the Senate engages in deliberation and debate before casting its votes.
In conclusion, while Congress initiates and drives the law-making process, the president has a crucial role in approving or rejecting bills. The president's veto power provides a significant check and balance in the legislative process, ensuring that laws are thoroughly considered and scrutinized before becoming enacted.
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Frequently asked questions
No. The U.S. Constitution is the nation's fundamental law. It codifies the core values of the people. If a law passed by Congress conflicts with the Constitution, the Constitution takes precedence.
The Supreme Court has the authority to conclusively decide questions of constitutional law through their power of judicial review. Judicial review allows courts to declare government actions or laws unconstitutional and prevent them from being enforced.
No. State governments and officials cannot pass laws that interfere with the Constitution, laws passed by Congress, or treaties.
The Supreme Court can declare such a law unconstitutional and prevent it from being enforced. There are several examples of state laws that have been held unconstitutional, including a Texas law that deprived railroads of due process and equal protection of the law.
Citizens can propose new laws or changes to existing laws by petitioning their members of Congress. A bill is a proposal for a new law or a change to an existing law. Once a bill is introduced, it goes through a process of research, discussion, and voting in both the House of Representatives and the Senate before it can become a law.


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