With the United States walking out of the Paris climate accord, cutting U.N. funding and sowing doubts about NATO and other trade commitments, the Iran agreement isn’t about Iran alone. It’s about upholding confidence in the international order. So, if Trump pursues a meltdown with Iran, he will also trigger a meltdown with Europe. Another one, to be precise.

Washington Post: If Trump blows up the Iran deal, he’ll cause a meltdown in Europe, too