"I think that he has on some level grasped the difficulties I mentioned a moment ago: the difficulties of counterinsurgency and nation building, the limits of American power. I think he has acted on the basis of those convictions. I think he has a fundamental faith in diplomacy, which I think is right. He understands that diplomacy and negotiations can be a very powerful tool in the tool kit of American strategists, and I think that he is exactly right. So I am appreciative of the fact and supportive of the fact that he has pursued negotiations with Iran most notably, also with Cuba."