State Dept: Iran didn't sign the nuclear deal

The Iranian regime did not sign the nuclear deal negotiated earlier this year, and the deal itself is not legally binding - that's according to an astonishing letter sent by the US State Department to Congressmen Mike Pompeo last week.
Attempting to downplay the immense significance of such an admission - which will only increase fears among opponents of the deal in the US and abroad that Tehran can and will easily violate its terms - Frifield continued:

"The success of the JCPOA will depend not on whether it is legally binding or signed, but rather on the extensive verification measures we have put in place, as well as Iran's understanding that we have the capacity to re-impose - and ramp up - our sanctions if Iran does not meet its commitments."
The incredible admission sheds new light on recent political machinations in Iran itself, where the JCPOA has been shunted through various parliamentary committees, and with President Hassan Rouhani - who himself initiated the nuclear deal - actively discouraging his parliament from voting for it in order not to place additional legal requirements on the regime.