
The United States Constitution has only 27 amendments because its framers intended for the process to be challenging. The Constitution grants the authority to amend it, and any existing constitutional amendment can be repealed, but only through the ratification of another amendment. The process of amending the Constitution can be lengthy and time-consuming, and in the history of the United States, only one constitutional amendment has been repealed.
| Characteristics | Values |
|---|---|
| Number of amendments to the U.S. Constitution | 27 |
| Amendments proposed by constitutional convention | 0 |
| Amendments proposed by Congress | 27 |
| Amendments requiring ratification by the states | 38 of 50 states |
| Amendments ratified by the states | 35 states for the Equal Rights Amendment (ERA) |
| Amendments that have been repealed | 1 (the 18th Amendment) |
| Amendments that have been discussed for repeal | 4 (the 16th, 17th, 18th, and 22nd Amendments) |
| Amendments that have been proposed | 11,699 |
| Success rate of amendments proposed | 0.002% |
| Latest amendment | 27th Amendment in 1992 |
| Role of the Supreme Court | Interprets the Constitution; cannot overwrite it |
| Role of the President | No role in the amendment process |
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What You'll Learn

The rarity of repealing constitutional amendments
The odds of repealing a constitutional amendment are incredibly slim, akin to an 80-year-old being struck by lightning, according to the National Weather Service data. Only one amendment, the 18th Amendment, which established Prohibition, has been repealed in US history. The 21st Amendment, ratified in 1933, overturned the 18th Amendment, demonstrating the exceptional nature of repeals.
The complexity of repealing amendments stems from the requirement that they must be proposed and ratified using the same methods as regular amendments. Per Article V of the Constitution, an amendment must be proposed by two-thirds of the House and Senate or through a constitutional convention called for by two-thirds of state legislatures. This process ensures that any changes to the Constitution are thoroughly considered and widely supported.
While there have been discussions about repealing other amendments, such as the 16th Amendment on federal income tax, the 17th Amendment on the direct election of Senators, and the 22nd Amendment on presidential term limits, none of these conversations have gained significant traction. The Second Amendment, rooted in the English Declaration of Rights, has also faced scrutiny, but the odds of its repeal are even steeper.
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The process of amending the US Constitution
Firstly, an amendment must be proposed. This is usually done by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate, known as a joint resolution. Alternatively, two-thirds of the states can call for a constitutional convention to propose amendments, although this has never been done.
Once proposed, the amendment is sent to the governor of each state. The states then vote on whether to ratify the amendment in their state legislatures. In some cases, states may be required to call special ratification conventions. For an amendment to be ratified, three-fourths of the states (38 out of 50) must approve it.
The Office of the Federal Register at the National Archives tracks the progress of the amendment and verifies the ratification documents. Once the required number of authenticated ratification documents is received, a formal proclamation is drafted for the Archivist to certify that the amendment is valid and has become part of the Constitution. This certification is published in the Federal Register and U.S. Statutes at Large, serving as official notice to Congress and the nation that the amendment process is complete.
The process of amending the Constitution was designed to be challenging, ensuring that any changes are carefully considered and widely supported. While thousands of amendments have been proposed, only 27 amendments have been successfully added to the Constitution since its approval in 1788.
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The role of the Supreme Court in interpreting the Constitution
Interpreting the Constitution is a crucial function of the Supreme Court, which has the final say on whether a right is protected by the Constitution and when a Constitutional right has been violated. The Supreme Court is the highest court in the United States, and it plays a vital role in the constitutional system of government.
The Supreme Court's power of judicial review is its most well-known authority. Judicial review allows the Court to declare a Legislative or Executive act in violation of the Constitution. Notably, this power is not explicitly mentioned in the Constitution but was established by the Court in Marbury v. Madison (1803). In this landmark case, the Court asserted that an Act of Congress contrary to the Constitution could not stand, with the Constitution as the supreme law of the land. The Supreme Court's interpretation of the Constitution holds significant weight, influencing how the document is understood and applied in practice.
The Supreme Court's role in interpreting the Constitution is not limited to specific clauses or amendments. For instance, the First Amendment, which refers to Congress, has been interpreted by the Court to apply to the President as well. Similarly, the Fourteenth Amendment's Equal Protection Clause, though mentioning only the states, has been applied to the federal government. The Eleventh Amendment's limitation on suits against states has also been interpreted broadly by the Court. These interpretations by the Supreme Court shape the practical application of Constitutional provisions and reflect the Court's role in adapting the Constitution to evolving circumstances and interpretations.
The Supreme Court's interpretations of the Constitution are not without controversy. Critics argue that the Court's interpretations can deviate significantly from the original text, raising concerns about judicial activism and the potential for judges to "ignore" the Constitution's text. However, supporters of the Court's interpretive role contend that it allows for a dynamic and adaptable understanding of the Constitution, ensuring its relevance and applicability in modern contexts.
While the Supreme Court's interpretations carry weight, amending the Constitution is a separate and rigorous process. Amendments can be proposed by Congress or through a constitutional convention demanded by state legislatures. Ratification by three-fourths of the states is required for an amendment to become part of the Constitution. This deliberate process underscores the importance of amending the Constitution thoughtfully and judiciously.
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The significance of state ratification in the amendment process
The process of amending the US Constitution is deliberately challenging. The Constitution's framers intended for amendments to be difficult to pass, ensuring that any changes would be thoughtful and necessary revisions.
The Constitution provides two methods for proposing amendments: one is through a two-thirds majority vote in both the House of Representatives and the Senate, and the other is via a constitutional convention called for by two-thirds of state legislatures. Notably, no amendments have been proposed through a constitutional convention to date. Once proposed, an amendment must be ratified to become part of the Constitution.
To be ratified, an amendment must be approved by three-fourths of the states, or 38 out of 50 states. This requirement ensures that a supermajority of states agree with the proposed change. The ratification process is administered by the Archivist of the United States, who heads the National Archives and Records Administration (NARA). The Archivist works with the Director of the Federal Register to follow established procedures and customs.
In conclusion, the state ratification process is a critical component of amending the US Constitution. It ensures that amendments reflect the consensus of a significant portion of the country and protects against impulsive or narrowly supported changes. The ratification process, with its emphasis on state involvement, underscores the importance of federalism and shared governance in the United States.
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The challenges of democratic support for constitutional changes
The process of amending the US Constitution is deliberately challenging. The Constitution's framers wanted to ensure that amendments were not made frivolously or haphazardly, and so any changes require an improbable amount of democratic support. This support must take the form of a two-thirds majority vote in both the House of Representatives and the Senate, or a constitutional convention called for by two-thirds of state legislatures. Amendments must then be ratified by three-fourths of states.
This process can be lengthy and time-consuming, and it is rarely used successfully. Since the US Constitution was approved in 1788, there have been around 11,699 proposed amendments, but only 27 have been ratified. This equates to a success rate of about 0.002%. The most recent amendment was added in 1992, almost thirty years ago.
The high bar for democratic support means that even widely supported changes may not be passed. For example, the Equal Rights Amendment (ERA) has been ratified by 37 states, but it has not been ratified by the required 38, and so it has not been added to the Constitution. The ERA was first passed by Congress in 1972, so it has taken over fifty years to get this close to ratification.
The challenge of gaining sufficient democratic support for constitutional changes is further complicated by the fact that there is no formal independent "repeal" process for constitutional amendments. This means that any existing constitutional amendment can be repealed only by the ratification of another amendment. This is a very rare occurrence; in the history of the United States, only one constitutional amendment has been repealed in this way.
The challenge of gaining sufficient democratic support for constitutional changes is further compounded by the fact that the President has no role in the amendment process. This means that even with the support of two-thirds of Congress, an amendment would still need to be ratified by three-fourths of states, a challenging feat that requires widespread consensus across the country.
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Frequently asked questions
An existing constitutional amendment can be repealed by the ratification of another amendment. This is a rare occurrence as it requires the same method as a regular amendment, which involves a proposal by two-thirds of the House and Senate, or a constitutional convention called for by two-thirds of state legislatures. The amendment must then be ratified by three-fourths of the states.
In the history of the United States, only one constitutional amendment has been repealed. The 21st Amendment repealed the 18th Amendment, which had banned the manufacture and sale of alcohol.
The Supreme Court cannot block an amendment but can interpret what is on the Constitution. A joint resolution can be ruled unconstitutional and taken to the Supreme Court to be challenged.

























