the president
article 5
Proposal and Ratification
First, the amendment must go to Congress and it must have a 2/3 pass. Second, the state legislatures must have a 3/4 pass.
The process for amending the Constitution is extraordinarily difficult. This can actually be seen by just looking at how many amendments there have been. Excluding the first 10 which were included in...
Laurence Tribe on Rewriting the American Constitution
Laurence H. Tribe on Interpreting the Constitution
Laurence Tribe: Revision Makes Constitution Legitimate
How to Interpret Constitutional Law