The years of torn-up policy due to his need to destroy everything Obama had achieved was so frustrating. Any policy, good or bad, was on the chopping block and it was completely transparent why he was doing it, but the media barely covered it due to the shitshow that was the rest of his presidency.

Though Trump has never held to a deal in his life that he wasn't forced to, and (like most narcissists) he probably assumes everyone else thinks the same way. He has no understanding of (and in fact seems to actively disbelieve in) the concept of "soft" power. He'd have torn up the Iran deal anyway because he'd prefer one backed by fear, especially since this lets him feel powerful.

No, Mr President -- thank you