congress must approve two-thirds of an amendment to U. S. Constitution before it is sent to the states.
The constitution of a state, institution, or another form of the body may be changed through a constitutional amendment. A current constitution's pertinent provisions are typically changed right away. They can, however, also be included in the constitution as further amendments (codicils), changing the way the government is organized without changing the original language.
The majority of constitutions include tighter specific procedures that must be followed before amendments can become law. Supermajorities in the legislature, direct voter approval in a referendum, or even a combination of two or more unusual procedures are examples of such extreme techniques.
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