Venezuela's President Nicolas Maduro (R) and Colombia's former President Andres Pastrana, speak during their meeting at Miraflores Palace in Caracas December 5, 2015. A group of former presidents, who are members of the Democratic Initiative of Spain and the Americas (IDEA), was invited by the Venezuelan coalition of opposition parties (MUD) as an accompaniment mission for the upcoming parliamentary elections on December 6. REUTERS/Carlos Garcia Rawlins