@George,
Several months ago,
2 groups of US Senators, totaling to about 2/3 of Senate membership,
wrote obama 2 letters condemning the treaty as being anti-gun freedom
and promising to vote
AGAINST ratification.
The Constitution requires a vote of 2/3 of the Senators in favor,
to achieve ratification of a treaty.
I was also aware that it is legally impossible
to amend the Constitution by a treaty.
Reid v. Covert 354 U.S. 1 (1956)
David