Philip May and first lady Melania Trump at the Foreign & Commonwealth Office, in London, Tuesday June 4, 2019. Moving from pageantry to policy during his state visit to Britain, President Donald Trump on Tuesday urged embattled Prime Minister Theresa May to "stick around" to complete a U.S.-U.K. trade deal, adding to this recent chapter of uncertainty in the allies' storied relationship. (Stefan Rousseau/Pool via AP)