REUTERS/Marcos Brindicci Argentina is on the brink of financial crisis after a shocking primary election saw President Mauricio Macri lose to Alberto Fernandez and his running mate, former president Cristina Fernandez de Kirschner. The S&P Merval Index plummeted 48% Monday, the second-largest single-day drop for any stock market since 1950. The Argentine peso fell 15% […]