BRASILIA — When Brazilian President Luiz Inácio Lula da Silva arrived at the White House this month, his host began by guiding him through the Presidential Walk of Fame to his own portraits.
As they walked side by side, Lula teased President Donald Trump about his stern expression in the photos. “Don’t you know how to smile?” Lula prodded, in his telling. Trump, he said, replied that voters preferred leaders who looked serious.
