Theresa May, U.K. prime minister, left, and U.S. President Donald Trump, smile during a joint news conference in the East Room of the White House in Washington, D.C., U.S., on Friday, Jan. 27, 2017. The British prime minister is planning to pitch a free-trade deal to the new U.S. leader just as the reality of a new era of protection for American workers sinks in. Photographer: Andrew Harrer/Bloomberg via Getty Images
