Trump went against our allies, who went through the trouble of last minute face to faces. They say that Iran is in compliance. They check thoroughly. They all think a nuclear free Iran is a good thing. They also want international agreements to stand. They negotiated in good faith .
Trump with his typical arrogance just threw it all out the window, Now he set a precedence that any country can use. Negotiate a deal, then just pull out if you feel like it. Oops, changed my mind. My countries agreement means nothing. You have to please me . If I change my mind, they you have to come up with something new.
The question is will international agreements be easier or harder to make.? A nation can negotiate anything the opposing countries want to hear. Then say fuck it, I am not doing that I agreed to. I changed my mind. Or will they say, I wont talk to you, because you cannot be trusted to honor your deals. But is any case, international agreements took a huge hit from Daffy.