What Donald Trump and Theresa May can agree on trade

"It's politically very beneficial on two fronts," said Rem Korteweg, a trade expert at the London-based Centre for European Reform. "It works for Trump in that it shows he's not anti-trade and not protectionist, and…it's in the British interest right now to show that it has a hedge in Washington, whoever's in the White House."...May's big problem, says CER's Korteweg, is the same one she will have the world over as she tries to build a new network of trade ties for "Global Britain": no-one will talk turkey with her on post-Brexit trade arrangements until they know what the U.K.'s final arrangements with the EU will look like. And, as with her EU dealings, the relative weight of the two economies stacks the cards against her. The U.S. economy is over six times bigger than Britain's.

..."Can you imagine the US Trade Representative agreeing to anything before it has clarity on the value of the UK market?" says Korteweg.