We review the main political events in Mexico during 2012. During this year, the election that brought the Partido Revolucionario Institucional back to Mexico's presidency appeared as a central episode. One of the legacies of the presidential campaign was the emergence of the social movement #YoSoy132 made up primarily of youngsters and university students. During 2012, the Mexican economy continued to grow, slowly but at a steady pace, while different reforms were approved in Congress. We review the labor, educational, and political reforms. Finally, we describe the evolution of violence -homicides and disappearances- and changes in the prosecution of human rights violations.