
A constitutional amendment is a modification of the constitution of a polity, organization, or other type of entity. Amendments are often directly woven into the relevant sections of an existing constitution, altering the text. The procedures for amending constitutions vary, with some requiring supermajorities in the legislature, direct approval by the electorate in a referendum, or a combination of both. For instance, Australia and Ireland require amendments to be passed by the legislature before being submitted to the people for approval. In the United States, the Congress can propose amendments when two-thirds of both Houses deem it necessary, or upon the request of two-thirds of the state legislatures. This case study of Bond v. United States exemplifies an instance where the petitioner challenged the validity of a federal statute on the grounds of Congress exceeding its powers under the Constitution, invoking the Tenth Amendment.
| Characteristics | Values |
|---|---|
| Definition | A constitutional amendment is a modification of the constitution of a polity, organization, or other type of entity. |
| Process | Amendments are often interwoven into the relevant sections of an existing constitution, directly altering the text. |
| Special Procedures | Supermajorities in the legislature, direct approval by the electorate in a referendum, or a combination of two or more different special procedures. |
| Examples | Australia and Ireland require that all amendments are first passed by the legislature before being submitted to the people. |
| Challenges | The special procedures for amendment can be exacting, resulting in few or no proposed amendments being passed over decades (e.g., eight out of 44 proposals in Australia, none in Japan). |
| Legislative Role | The role of legislatures varies; some require legislative approval before submission to the people, while others grant legislatures complete control over the amending process. |
| State Sovereignty | Amendments may address state sovereignty concerns, such as in the Tenth Amendment in the Bond v. United States case, where state sovereignty was asserted against the National Government. |
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What You'll Learn

Constitutional amendment definition
A constitutional amendment is a modification of the constitution of a polity, organisation, or other type of entity. Amendments are often woven into the relevant sections of an existing constitution, directly altering the text. They can also be appended to the constitution as supplemental additions (codicils), changing the frame of government without altering the existing text of the document.
Most constitutions require that amendments be enacted through a special procedure that is more stringent than the process for passing ordinary legislation. Examples of special procedures include supermajorities in the legislature, direct approval by the electorate in a referendum, or a combination of two or more different special procedures. A referendum to amend the constitution may also be triggered in some jurisdictions by popular initiative.
The specific procedures for amending constitutions vary across jurisdictions. For instance, in Ireland, Estonia, and Australia, constitutional amendments originate as bills and become laws in the form of acts of parliament. In contrast, in the United States, a proposed amendment originates as a special joint resolution of Congress that does not require the President's signature or approval.
The manner in which constitutional amendments are recorded can take two main forms. The first and most common method is to revise the previous text by deleting portions of the original text or inserting new articles among existing ones. The second method is to append the amendment to the end of the main text as a special article of amendment, leaving the original text unchanged. This method is famously associated with the United States Constitution and is also used in other jurisdictions like Venezuela.
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Amendment procedures
A constitutional amendment is a modification of the constitution of a polity, organisation, or other type of entity. Amendments are often interwoven into the relevant sections of an existing constitution, directly altering the text.
Amending a constitution is a complex process that varies across jurisdictions. Here is an overview of some common amendment procedures:
- Legislative Approval: In some countries, such as Australia and Ireland, all amendments must first be passed by the legislature before being presented to the people. In Ireland, a simple majority of voting electors is required, while Australia requires a more complex set of criteria, including a majority of voters in a majority of states.
- Supermajority in the Legislature: In certain cases, a supermajority in the legislature is required to approve a constitutional amendment. This means that a proposed amendment must receive support from a significantly higher proportion of legislators than is normally required for passing laws.
- Referendum: Another approach is to put the proposed amendment to a direct vote by the people in a referendum. This allows the electorate to have a direct say in altering their constitution.
- Combination of Procedures: In some jurisdictions, a combination of the above procedures is employed. For example, an amendment may first need to be approved by a supermajority in the legislature and then be put to a referendum for final approval by the voters.
- Popular Initiative: In certain circumstances, a referendum to amend the constitution can be triggered by a popular initiative. This means that if a certain number of citizens petition for a change, it can lead to a referendum being held.
- Convention for Amendment: In some cases, a convention may be called specifically for the purpose of proposing amendments to the constitution. This can be initiated upon the application of a significant portion of the states or provinces within a country.
- Ratification by States: After an amendment is proposed, it must be ratified to become part of the constitution. In federal systems, this often involves ratification by a specified number of states or provinces. For example, in the United States, an amendment becomes valid when ratified by the legislatures of three-fourths of the states.
The exact procedures and requirements for amending a constitution can vary significantly, and some jurisdictions have more demanding criteria than others. For example, in Australia, only eight out of 44 proposed amendments have been passed, while in Japan, none have been passed in several decades due to the exacting nature of their amendment procedures.
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State sovereignty
A constitutional amendment is a change or addition to the constitution of a nation or state. One key purpose of constitutional amendments is to protect state sovereignty, which refers to the idea that states within a federal system, such as the United States, retain certain powers and rights that are independent of the national government. This concept is often associated with the Tenth Amendment to the U.S. Constitution, which states that powers not delegated to the national government nor prohibited to the states by the Constitution are reserved for the states or the people. State sovereignty is a fundamental aspect of federal systems, as it recognizes and protects the autonomy and authority of individual states, creating a balance of power between the national and state governments.
Within the context of state sovereignty, constitutional amendments play a crucial role in defining and safeguarding the rights and powers of the states. They serve as a mechanism to clarify the distribution of powers between the national and state governments, ensuring that states maintain their authority in areas not specifically delegated to the national government. By enacting constitutional amendments, states can reinforce their sovereign rights and establish clear boundaries that limit the intrusion of national authority.
One example of a constitutional amendment that significantly impacted state sovereignty in the United States is the Tenth Amendment itself. Ratified in 1791 as part of the Bill of Rights, the Tenth Amendment explicitly affirms the principle of federalism by specifying that the national government possesses only those powers delegated to it by the Constitution. Any powers not granted to the national government are reserved for the states or the people, thus preserving the autonomy and decision-making authority of individual states on a range of issues.
Another important aspect of state sovereignty protected by constitutional amendments is the integrity of state boundaries and the authority to govern themselves internally. Amendments can ensure that states maintain control over their territorial boundaries and that any changes to those boundaries require the consent of the state and its people. Additionally, amendments can safeguard the ability of states to create and enforce their own laws, establish state governments, and regulate internal affairs without undue interference from the national government.
In conclusion, constitutional amendments are vital tools for safeguarding state sovereignty within a federal system. They empower states to retain their autonomy, protect their rights and interests, and ensure a balanced distribution of powers between the national and state governments. Through constitutional amendments, states can define and secure their authority, shape their internal governance, and maintain a strong and independent position within the nation. The Tenth Amendment stands as a cornerstone of state sovereignty, underscoring the limited nature of national power and the reserved rights of the states in the American constitutional framework.
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Bond v. United States
A constitutional amendment is a modification of the constitution of a polity, organization, or other type of entity. Amendments are often interwoven into the relevant sections of an existing constitution, directly altering the text.
In 2006, microbiologist Carol Anne Bond of Lansdale, Pennsylvania, discovered that her best friend was pregnant with her husband's child. Driven by rage and jealousy, Bond attempted to injure her former friend by spreading harmful chemicals on the door knob of the pregnant woman's home. The chemicals included organoarsenic and potassium dichromate, which can cause serious health issues when exposed to humans.
Bond was quickly caught and convicted under the Chemical Weapons Convention Implementation Act of 1998 (CWA). However, she challenged her conviction, arguing that her actions did not constitute a "chemical weapon" attack and that the federal government had overreached its powers by prosecuting her for a local crime. The case, known as Bond v. United States, made its way to the Supreme Court, which issued a ruling in 2014.
The Supreme Court unanimously ruled in favor of Bond, concluding that the CWA did not apply to her actions and that she could not be charged under federal law. The Court found that the term "'chemical weapon' in the statute was overly broad and vague", and that there was no clear indication that Congress intended to include local assaults under the CWA. The Court emphasized the principles of federalism, stating that there must be a clear indication from Congress if it intends to intrude upon traditional state criminal jurisdiction.
Justice Thomas, joined by Justice Scalia and partly by Justice Alito, disagreed with the majority's opinion. They argued that the treaty itself was unconstitutional because it attempted to regulate "purely domestic affairs." Thomas cited historical sources, including international law publications from the 1600s, to support his interpretation of the scope of treaty powers.
The Bond v. United States case highlights the complex interplay between federal and state powers in the United States and the role of the Supreme Court in interpreting and enforcing constitutional principles. It sets an important precedent for future cases involving the interpretation of statutory definitions and the scope of federal power in relation to local crimes.
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Congress' role
A constitutional amendment is a modification of the constitution of a polity, organisation, or other type of entity. Amendments are often woven into the relevant sections of an existing constitution, directly altering the text.
In the United States, Congress plays a crucial role in the process of proposing and ratifying constitutional amendments, as outlined in Article V of the US Constitution. When two-thirds of both Houses of Congress deem it necessary, they can propose amendments to the Constitution. Additionally, upon the application of the legislatures of two-thirds of the states, Congress can call a convention for proposing amendments. This process allows for direct involvement of state legislatures in initiating the amendment process.
The role of Congress in proposing amendments ensures that they are responsive to the needs and interests of a significant portion of the country. By requiring a supermajority in both Houses, the process safeguards against hasty or partisan changes to the Constitution. Once an amendment is proposed by Congress, it becomes valid and is considered part of the Constitution when ratified by the legislatures of three-fourths of the states.
In certain cases, Congress can also bypass the state legislatures and propose amendments directly to the states for ratification. This method, known as the "application of the legislatures" method, allows for a more direct role of Congress in the amendment process. However, it is important to note that the amendment process in the United States has been subject to differing interpretations, with some arguing for judicial abstinence and others granting Congress complete and sole control over the process.
The exacting nature of the amendment process in the United States has resulted in varying levels of success in proposing and ratifying amendments. While some countries, like Japan, have struggled to pass any amendments, others, like Australia, have seen a small number of amendments passed due to their complex set of criteria. Nevertheless, the role of Congress in initiating and facilitating the amendment process is a critical aspect of constitutional governance in the United States.
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Frequently asked questions
A constitutional amendment is a modification of the constitution of a polity, organization, or other type of entity. Amendments are woven into the relevant sections of an existing constitution, directly altering the text.
The purpose of a constitutional amendment is to alter the text of a constitution. This can be done for a variety of reasons, such as to update outdated language, to clarify ambiguous provisions, or to address a gap in the existing constitution.
The process for amending a constitution can vary depending on the jurisdiction. In some countries, such as Australia and Ireland, amendments must first be passed by the legislature before being submitted to the people for a vote. In the United States, the Congress can propose amendments whenever two-thirds of both Houses deem it necessary, or on the application of the legislatures of two-thirds of the states, a convention for proposing amendments can be called.
An example of a constitutional amendment case is Bond v. United States, where Bond sought to challenge the constitutionality of a federal statute on the grounds that it exceeded the powers of Congress and intruded upon the sovereignty and authority of the states. Bond relied on the Tenth Amendment, which protects state sovereignty.
























