John Kerry

In the first place, she is not running against Kerry. Therefore he is not a threat. In addition, any messes that he can make better, the better for her. The best position for her would be if a year or so from now, Obama's foreign policy is seen as successful. The Republicans will try to run against Hillary by referring to the Obama/Clinton/Kerry foreign policy -- as Jeb Bush did.

With Iran, even if an agreement is reached, which I pray will happen, this will not be a clear win. There are many who will then argue that by taking "our foot off Iran's neck", they will be freer to do things like support Hezbollah. This is why you have people like Netanyahu actually willing to say that even if Iran did not violate the deal - and the deal kept them from getting a nuclear weapon for 10 years - the deal would be bad. In fact, those comments showed that his comments on a better deal were not honest. No deal, that dealt just with nuclear weapons would be acceptable to him. In reality, it was not fear that they get a nuclear bomb, but fear that they could become a bigger power in the region. (This is also why, they were aghast at any view that this deal could then lead to the US and others dealing with other issues between themselves and Iran. To me, that is part of the promise to this.)