Convention to propose amendments to the United States Constitution
A convention to propose amendments to the United States Constitution, also referred to as an Article V Convention, state convention, or amendatory convention is one of two methods authorized by Article Five of the United States Constitution whereby amendments to the United States Constitution may be proposed: on the Application of two thirds of the State legislatures (34 of the 50) the Congress shall call a convention for proposing amendments, which become law only after ratification by three-fourths of the states (38 of the 50). The Article V convention method has never been used; but 33 amendments have been proposed by the other method, a two-thirds vote in both houses of Congress; and 27 of these have been ratified by three-fourths of the States.