At a Hispanic Listening Session Friday, Paul Ryan met a man he said summed up why he’s pushing to reform the country’s immigration system. Gustavo Vargas described coming to the U.S. from Mexico to work, without detailing his immigration status. When his five-year-old son died, Vargas said, he made the hard decision to bury the boy here. He and his family “love the United States, and we want to stay here, to live,” Vargas told the congressman. Later, he said quietly that he wasn’t looking for attention, “I just wanted him to understand.” In front of around 300 people in...