Whenever the Congress of the United States of America has adopted a proposal to amend the Constitution of the United States of America and the mode of ratification thereof prescribed by Congress is by the legislatures of the several states, a joint resolution proposing the ratification of such proposed amendment shall be considered by both houses of the General Assembly of this State. Such joint resolution to ratify the Congressional proposition to amend the Constitution of the United States shall be validly adopted by the General Assembly of this State only if it receives the favorable vote of a constitutional majority of the members of each house of the General Assembly.
5 ILCS 5/1