This failure has also caused Trump to lose the psychological war. Had he succeeded, the calculation was that it would instill panic in the Iranian population and cause them to lose faith in the government’s capacity to weather the same storm. That in turn would have led to a critical mass of people taking to the streets and pushing for the regime’s collapse, the calculation was.

By failing to live up to his promise of eliminating Iranian oil exports, Trump also failed to instill panic and cause the population to lose faith in the government’s capacity to handle the sanctions for the thanks to years.

That said, this does not mean that he’s not hurting the Iranian economy. On the contrary, it is extremely painful and the population is hurting immensely due to the sanctions. But pain alone is not going to cause the collapse of the economy or the regime.

JC: Expectations are that probably 20 or so Democrats will enter the 2020 presidential primaries. As the author of a book, Losing an Enemy, that gave the inside story of the Obama administration’s efforts to secure the JCPOA, what advice would you give the next Democratic president in order to get back on the right diplomatic track with Iran and, importantly, the other signatories of the JCPOA, whom Trump gone out of his way to offend?

TP: If the JCPOA survives for the next two years and Trump loses in 2020, then the next administration must seek to reenter the agreement. There needs to be…