You can always decide to exit a treaty. If enough people voted in representatives willing to exit the treaty it would be done.<p>The TPP isn&#x27;t a real treaty as that requires a 2&#x2F;3 vote in the Senate its what&#x27;s known as a trade promotion authority.<p>Constitutional amendments trump treaties. If anything is found to be unconstitutional in the treaty by SCOTUS, then the treaty may need to be broken.