I came across this post written by Daniel Halper in The Weekly Standard concerning the defection of a former aide to Iranian President Hassan Rouhani. Amir Hossein Mottaghi was responsible for Rouhani's social media campaign during Iran's 2013 "elections". Mottaghi was covering the P5 + 1 negotiations with Iran in Switzerland when he decided to defect.
Naturally, Mottaghi is disenchanted with the Iranian regime, but the most damning thing he said was about the Obama Administration's negotiating team when he appeared on Swiss TV. Mottaghi stated, "The U.S. negotiating team are mainly there to speak on Iran's behalf with other members of the 5 + 1 countries and convince them of a deal."