Development: Ramón Mestre, aligned with Cambiemos, the national opposition coalition, was comfortably re-elected mayor of the Argentine city of Córdoba in polls held on 13 September. Significance: Located in the centre of the country, Córdoba is Argentina’s second-largest city, and could play an important role in the national elections due next month. Mestre’s victory was good news for Mauricio Macri, the Cambiemos presidential candidate, and a disappointing result for Daniel Scioli, the presidential candidate for the ruling Frente Para la Victoria (FPV) faction of the Partido Justicialista (PJ, Peronists). But the battle between the two main presidential contenders remains open.…