If the agreement is completely within the President 's constitutional powers , it can be made by the President alone without Congressional approval .
It will have the force of an executive order and can be unilaterally revoked by a future President .
If the agreement is completely within the President 's constitutional powers , it can be made by the President alone without Congressional approval , but it will have the force of an executive order and can be unilaterally revoked by a future President .