False.
There Constitution does not call for a voter referendum or "popular vote" for amendments. As a matter of fact it is not one of the methods described:
"Article. V. The Congress, whenever two thirds of both Houses shall deem it necessary, shall propose Amendments to this Constitution, or, on the Application of the Legislatures of two thirds of the several States, shall call a Convention for proposing Amendments, which, in either Case, shall be valid to all Intents and Purposes, as Part of this Constitution, when ratified by the Legislatures of three fourths of the several States, or by Conventions in three fourths thereof, as the one or the other Mode of Ratification may be proposed by the Congress;"
The Constitution calls for a representative vote either in the Legislature or in State Convention - not a "popular vote" and requires 3/4th's of the State ratifications to pass.
Calls for a Constitutional amendment have numerously been proposed and never reached the super majority required.
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