First, could these agreements be amended or modified by another unanimous approval agreement? Second, could the president enforce these agreements? Today, these two principles are accepted as procedural „data“. A few decades ago, this is no longer the case. For example, on March 3, 1897, Senator George Hoar, R-MA, declared, „I think it is very serious to set the precedent in all circumstances, to revoke a unanimous agreement by other unanimous approval agreements.“ 10 One of the Senate`s institutional leaders, Henry Cabot Lodge, told R-MA: „If there are plans to change the approval agreements unanimously, we will soon find it impossible to reach unanimous agreement.