First two points are good. The second one very important, especially since Republican canidates are taking such an extreme position on Iran already.
Right, of course Europe has to solve it's problem by themselves. But America can of course aid their European partners in some points. The IMF is a huge player, and has a lot of US funding. The rating agencies are based in the US, thus the government has influence there as well.
But in the first place, ackknowledgeing the problem and it's impact on America would be a plus.