Article V in AP US Government
Article V is the part of the U.S. Constitution that sets the formal process for amending it. An amendment is proposed by a two-thirds vote of both houses of Congress or by a national convention called at the request of two-thirds of the state legislatures, and it takes effect only after three-fourths of the states ratify it.
This definition is part of Fiveable's AP US Government review, which also has guided practice questions.
Two stages, two routes each, supermajorities throughout
Proposal comes first. Congress can propose an amendment with a two-thirds vote in both the House and the Senate. The other route lets two-thirds of state legislatures (34 of 50 today) apply for a national convention, which Congress then calls. Every one of the 27 amendments has come through the congressional route. No convention has ever been used.
Ratification comes second. Three-fourths of the states (38 of 50) have to approve, either through their state legislatures or through special state ratifying conventions. Congress picks which method applies. Only the 21st Amendment, which repealed Prohibition, was ratified by state conventions.
The president has no formal role. An amendment is never signed or vetoed, and the Supreme Court doesn't approve it either. That detail could help you rule out an incorrect answer choice.
Why the Convention's compromises needed a way to change the document
Delegates at the Constitutional Convention disagreed sharply about self-government, national power, and state power, so they needed a process for fixing whatever they got wrong. That's why Article V sits in Unit 1: Foundations of American Democracy, Topic 1.5: Ratification of the U.S. Constitution. That topic asks how bargaining at the Convention shaped the system.
They had just watched the opposite failure. The Articles of Confederation required every state to agree before any amendment, so one state could block a change. Article V lowered that bar to three-fourths of the states but kept it high enough that a short-lived majority couldn't rewrite the Constitution.
The process is a compromise in its own right. Congress or an Article V convention proposes an amendment, and the states ratify it. Each state counts equally at ratification no matter its population, which echoes the Senate side of the Great (Connecticut) Compromise.
Article V also locked in two deals from the Convention. It barred any amendment before 1808 that would touch the clause protecting the importation of enslaved persons. It also says no state can lose its equal vote in the Senate without its own consent.
The process got used right away. Ratification was won partly on the promise of a Bill of Rights to answer Anti-Federalist fears. Congress proposed those amendments in 1789, and the states ratified them in 1791.
Matching Article V to the principle a question names
When a stem asks which principle the two-thirds and three-fourths rules reflect, the answer usually points to the Framers' view of power and change. Look for one of these:
- Federalism: both the national government and the states must take part.
- Limits on majority rule: supermajorities stop a bare majority from changing the founding document.
- Stability balanced with adaptability: change is possible, but only with broad, lasting agreement across the country.
EXCEPT questions list the real requirements and slip in a fake one. Fakes to watch for include a presidential signature, Supreme Court review, a simple majority in Congress, or a national popular vote.
In Question 1 (Concept Application), a scenario might describe a group pushing an amendment, such as one on surveillance or on the federal role in schools. A strong answer names the exact stage and threshold. It also explains why the high bar requires broad support for a proposal (either in both houses of Congress or among state legislatures seeking a convention) plus ratification by three-fourths of the states. In Question 4 (Argument Essay), Article V works as evidence from the Constitution when you argue that the Framers limited majority rule or split power between the nation and the states.
Article V vs. Article VII, and the numbers that get swapped
Article VII set the one-time rule for adopting the original Constitution: nine of the thirteen states had to ratify. Article V is the ongoing process for amendments, and its bar is higher at three-fourths of the states.
If a question is about the 1787-1788 ratification fight between Federalists and Anti-Federalists, think Article VII. If it's about changing the Constitution after adoption, it's Article V.
The other easy slip is mixing up the fractions. Two-thirds is the proposal threshold, whether in Congress or among state legislatures requesting a convention. Three-fourths is the ratification threshold. An answer choice that says two-thirds of the states ratify is wrong.
Where this sits in AP® Gov
- Unit 1: Foundations of American Democracy (about 15–22% of the multiple-choice section)
- Topic 1.5: Ratification of the U.S. Constitution Study guide →
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