This guy is right. Trump has never once shown any understanding of what was in the JCPOA...this stuff was almost certainly leaked by the Russians, but its sentiments are universally held by foreign diplomats.
I remember when he used to say that the US wouldn’t be laughed at anymore. Backfire!
Link: https://www.cnn.com/2019/07/13/politics/daily-mail-trump-iran-nuclear-deal-leaked-cables/index.html