Within the United States, the most common explanations draw on Mr. Trump’s personality or on domestic politics. Dismantle or freeze your program on assurances from the United States, and those assurances may be broken. China, which is also a party to the Iran deal, is likely to play a major role in shaping any agreement with North Korea. The United States had to be the rational referee in negotiations, letting other countries issue demands or threaten to walk out. In the meantime, Mr. Trump shows signs of enjoying his power as international spoiler.

Source: New York Times April 28, 2018 03:11 UTC