[Repeal The 17th]

"... how will adding anything improve on that situation? ..."
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Things like:
Term limits...
Repeal the 17th amendment...
Repeal the 16th amendment...
etc., etc.
Have you visited the Convention of States website?
Have you read Mark Levin's "Liberty Amendments"?
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Here is the text of the bill passed in Georgia:
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Georgia Senate Resolution 736
Passed by the Georgia Senate and approved by the Georgia House of Representatives
A RESOLUTION
Applying for a convention of the states under Article V of the United States Constitution;
and for other purposes.

WHEREAS,
the founders of the Constitution of the United States empowered state legislators
to be guardians of liberty against future abuses of power by the federal government; and

WHEREAS,
the federal government has created a crushing national debt
through improper and imprudent spending; and

WHEREAS,
the federal government has invaded the legitimate roles of the states
through the manipulative process of federal mandates,
most of which are unfunded to a great extent; and

WHEREAS,
the federal government has ceased to live
under a proper interpretation of the Constitution of the United States; and

WHEREAS,
it is the solemn duty of the states to protect the liberty of our people,
particularly for the generations to come, by proposing amendments to the
Constitution of the United States through a convention of the states
under Article V of the United States Constitution
to place clear restraints on these and related abuses of power.

NOW, THEREFORE, BE IT RESOLVED BY THE GENERAL ASSEMBLY OF GEORGIA
that the General Assembly of the State of Georgia hereby applies to Congress,
under the provisions of Article V of the Constitution of the United States,
for the calling of a convention of the states limited to proposing amendments
to the United States Constitution that impose fiscal restraints on the federal government,
limit the power and jurisdiction of the federal government,
and limit the terms of office for its officials and for members of Congress.

[Repeal The 17th]

This is the important part:

WHEREAS,
the federal government has ceased to live under a proper interpretation of the Constitution of the United States; and

WHEREAS,
it is the solemn duty of the states to protect the liberty of our people, particularly for the generations to come,
by proposing amendments to the Constitution of the United States through a convention of the states under Article V
of the United States Constitution to place clear restraints on these and related abuses of power.