Voters were called to the polls in El Salvador in parliamentary and presidential elections on Sunday, with President Nayib Bukele expected to cruise to a safe re-election. Opinion polls indicate that the 42-year-old Bukele is likely to be returned to office with a large majority. His successful but controversial crackdown on criminal gangs that had terrorized the Central American country for decades was seen as key to his expected electoral success. As crime has fallen, Bukele’s popularity has soared. But critics warn of an increasingly authoritarian turn taken by the former mayor of the capit…