Roberto Sánchez

Roberto Sánchez is not mentioned in either of the provided news articles. The articles primarily focus on the Peruvian presidential elections, specifically mentioning Keiko Fujimori's potential advancement to the second round based on early polls. They also describe the general atmosphere of the election, including the prevalence of campaign promises and diverse candidate approaches to addressing issues like crime. Without further information from the provided texts, it is impossible to provide any details about Roberto Sánchez's background, current relevance, or any recent events related to him.