David Davis, U.K. exiting the European Union (EU) secretary, walks in Downing Street in London, U.K., on Wednesday, March 15, 2017. The European Union is considering forcing the U.K. to wait until June for formal negotiations to begin on the terms of Brexit, eroding the time U.K. Prime Minister Theresa May has to land a deal, according to EU officials. Photographer: Simon Dawson/Bloomberg via Getty Images
