What did they do? appeal directly to Moochell?
A flyover of six inches off the lawn.
I would recommend that everyone running down this particular thread review the actions of various Democratic senators and congressmen from the mid 1970’s through the mid 2000’s.
The are many examples, a few bordering on active treason, when Democratic members of Congress have actively conducted foreign policy initiatives that were in direct contradiction to expressed and active foreign policy positions by the existing administration.
IMHO the letter was actually aimed at Obama to remind him that any treaty that was going to become law has to be approved by 2/3rds of the Senate. If this treaty is NOT submitted to the Senate for approval then it is a policy and is subject to review, revision, or rejection by any incoming administration, not just necessarily the person who moves into the White House January 2017.