I would guess it is because of the whole thing where a treaty can be agreed to but isn&#x27;t ratified unless the Senate approves it <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Ratification#United_States" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Ratification#United_States</a>