WASHINGTON—Nick Adams reeled off the countries he had visited in recent weeks: Ireland, Italy, France, Romania, Egypt, Qatar, Malta, and the UK. “The purpose of the roadshow was to set the record straight,” Adams told The Epoch Times. President Donald Trump’s special envoy for American tourism, exceptionalism, and values is fighting a widespread narrative about the United States—the view that “America is inhospitable, expensive, unsafe, and unwelcoming,” he said. Adams sees a counter-narrative emerging on social media during the FIFA World Cup, which the United States is co-hosting with Canada and Mexico. Europeans who have come for the games are posting videos that show their love for America’s sights, sounds, and tastes, from blue cheese snacks to the Buc-ee’s gas station chain....