As I recall, without looking it up, it seems to me that ANY amendment to the Constitution of the USA requires ratification by three-fourths of the state legislatures, and if it doesn't get them, then it's not amended to the Constitution.
The average age as of now if the house of representatives is 57
Set up the Constitution as the incomparable law of the United States, affirming the Court's energy of legal survey. The Supreme Court found that elected courts have the ability to nullify demonstrations of different branches of government when they abuse the Constitution. It's one of the "balanced governance" key to the capacity of the government.