Regional powers recognize Maduro opponent as interim leader

The United States, Canada and major South American nations recognized the head of Venezuela's opposition-controlled legislature as the country's interim leader on Wednesday, leaving President Nicolas Maduro increasingly isolated.Major regional players Brazil, Colombia, Chile, Peru and Argentina all gave their backing to Juan Guaido's self-proclamation as Venezuela's acting president, which he made in front of crowd of tens of thousands of supporters in Caracas.Mexico, however, stood apart, sayin