“BREXIT-plus-plus-plus” was how Donald Trump—who additionally known as himself “Mr Brexit”—termed his pitch to voters throughout his profitable presidential marketing campaign. Positive sufficient, many Individuals will quickly be waking up quickly to a sense much like the one Remainers in Britain skilled on the morning of June twenty fourth: bafflement on the failure of so many polls to foretell the consequence, shock on the citizens’s defiance of professional opinion, concern for liberal values. If Mr Trump relishes the comparisons it’s as a result of he identifies with the architects of Britain’s departure from the European Union: like him, privileged demagogues deft at manipulating the general public’s worst fears and instincts.

But these affinities confer few apparent benefits on Britain. Mr Trump might admire the nation’s latest determination, however he’ll make an unpredictable, unfamiliar associate—particularly in contrast with Hillary Clinton, an instinctive Anglophile. It says one thing in regards to the speedy way forward for the “particular relationship” so revered in London that the British politicians most skilled in coping with America’s president-elect are Nigel Farage, a Brexiteering rabble-rouser (who stumped for him and is at present flying to Washington, DC to ingratiate himself additional with the incoming administration) and Alex Salmond, a former first minister of Scotland (whom Mr Trump branded “a has-been and completely irrelevant” in a tiff over a Scottish golf resort).

What in regards to the nation’s leaders? Theresa Might might hardly be extra totally different in temperament from her new counterpart. The international secretary, Boris Johnson, although nearer to him in fashion, has stated: “The one cause I would not go to some components of New York is the true threat of assembly Donald Trump.” In January British MPs debated banning Mr Trump from the nation, calling him a “buffoon”, a “demagogue” and a “joke” (one utilizing the phrase “fool” thrice in 5 minutes). To say the British institution is unenthusiastic about America’s president-elect could be to place it politely.

Nonetheless, the dangers of a Trump presidency—protectionism, geopolitical turmoil, American isolationism—weigh heavy on British pursuits. And so they achieve this all of the extra because of the choice in June that so animated Mr Trump: Brexit removes lots of the shock absorbers which may have helped Britain to journey out the subsequent few years.

Take commerce. Mr Trump has lengthy pledged to pursue a troublesome line in negotiations and appears to fancy a tariff conflict with China. Protectionism is infectious. If, as appears possible, Britain leaves the EU’s customs union on quitting the organisation, it might nicely discover itself making an attempt to barter new commerce phrases at a time when economies all over the world are pulling up the drawbridge.

In the meantime the British economic system was already in a fragile state earlier than final evening’s consequence, with the pound weakened, enterprise uncertainty mounting and a few proof of slowing funding. The financial shock of a Trump presidency might exacerbate these tendencies (although the pound briefly rose towards the greenback as Mr Trump’s victory grew to become clear). It’s going to additionally harden politics within the mainland European nations with which Britain will shortly begin negotiating, the place populists emboldened by his win (most notably Marine Le Pen of France’s Nationwide Entrance) will scale back mainstream leaders’ freedom to approve a practical take care of Britain.

Then there’s safety. A staple of the pro-Brexit marketing campaign was that the existence of NATO made European defence cooperation pointless and that quitting the EU would thus not knock Britain’s affect as a navy energy. That didn’t reckon with America’s subsequent president being as equivocal about NATO as is Mr Trump, who has pledged an “America first” doctrine requiring nations underneath its safety umbrella to make their very own preparations. Britain might thus discover itself falling into the hole between a much less efficient, extra divided NATO on the one aspect and speedy strikes in direction of EU defence integration on the opposite.

A single theme unifies these dangers. Brexit is a huge shock to Britain’s place on this planet. It’s going to sever previous hyperlinks and require new ones to be solid. As a few of its keenest proponents concede, this transition will deliver painful prices. Most of all it calls for plenty of good will and adaptability on all sides. In as far as Mr Trump’s win means a meaner, extra fractious, extra unstable world order, it raises these prices and shrinks that area for compromise and consensus important for a clean Brexit.

Limiting the harm of a Trump presidency on a Brexiting Britain calls for ambition and perspective from Mrs Might. Her strategy needs to be two-sided. First, construct a brand new, nearer alliance with Angela Merkel, not simply on Brexit however on wider points: the world economic system, safety, Russia and China. In Berlin and different European capitals officers complain that June’s referendum consequence has taken Britain’s thoughts off all different issues. The prime minister should not enable that to occur and as a substitute work with Mrs Merkel as a bloc able to countering Mr Trump’s worst traits.

Second, Mrs Might ought to use Britain’s affect in America (which is important, if not as a lot as Britons wish to think about) to aim to average the brand new president, staying his hand when he does unsuitable and indulging his self-importance when he does proper. Mrs Might already had her arms full with Brexit. Now, for Britain’s sake and that of the world, she should additionally take care of Mr Brexit himself.