CONSTITUTION OF THE UNITED STATES OF AMERICA
Article 5
Amendments
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: Provided, that no amendment which may
be made prior to the year 1808, shall in any manner affect the first and
fourth clauses in the ninth section of the first article; and that no state,
without its consent, shall be deprived of its equal suffrage in the Senate.