I asked a senior German diplomat the other day what issues the United States and Germany are cooperating on. He looked blank. Not Iran, obviously. Not trade, evidently. Not climate change, blatantly. Not Russia, plainly. Not migration, pointedly. With alliances like these, who needs enemies?

From a French diplomat, I received a worried letter. President Trump’s scuttling of the Iran nuclear deal was “the best illustration of the Jacksonian moment the United States is going through, a mix of unilateralism and isolationism” that contribute to “a new world disorder” where there is “no more American power willing or able — or both — to be the last-resort enforcer.” In the vacuum, he could discern “no minimum level of convergence between the key players.”

Trump to Europe: Get lost. As the French president, Emmanuel Macron, observed of Trump last month, “He is very predictable.” Boringly so, I’d add. His contempt for the Atlantic Alliance was evident during the campaign; he follows through. That’s his form of “honesty” amid a torrent of lies. Tens of millions of Americans love him for it. They see him as the most “honest” president ever. Why? Because he tells it like it is.

Europe is beginning to digest the severity of the schism. Federica Mogherini, the European Union’s senior foreign policy official, heaped scorn on Trump recently, saying that “screaming, shouting, insulting and bullying, systematically destroying and dismantling everything that is already in place, is the mood of our times.” Without naming the president, she warned that “this impulse to destroy” leads nowhere good. Hers was a requiem for “respect” and “dialogue” — in effect the post-1945 order.