The year 2009 was particularly relevant for Mexico. The most outstanding events were increasing of the so called narco-violence, caused by inter-drug cartels war for controlling territory, and between the government and the cartels, economic crisis, and local and mid-term elections that elected 500 deputies of the legislature. While violence has escalated in some states, the party system has become a consolidated one; three parties size 90% of the national vote and of the seats in Congress and electoral processes took place in a normal and institutional manner, a very different situation from the 2006 turbulent presidential election. One of the most important outcomes of these elections was the electoral recovery of the Partido Revolucionario Institucional and the electoral erosion of the ruling party, Partido Acción Nacional, and The Partido de la Revolución Democrática.