Robert Joseph: “All arms control commitments must be scrupulously observed, and if they are not, there must be consequences.”

Once you allow Iran to maintain and in fact under this agreement expand a large-scale infrastructure for enrichment, the agreement in and of itself explicitly recognizes at that point Iran as a nuclear weapons threshold state.

I have always found it difficult to explain things that don't make sense, and I don't think it makes sense to the American people.

My skepticism is that we continue to apply cold-war approaches in our relationship with Russia.

The nuclear option is there for Iran if it decides to go down that path.