sentences:  Poverty exacerbated, and without a ruling majority in Congress, the PAN presidents were unable to pass structural reforms, leaving monopolies and Mexico's educational system unchanged.In 2006, Felipe Calderón chose to make the battle against organized crime the centerpiece of his presidency.Nonetheless, with over 60,000 dead and a lack of any real progress, Mexican citizens became tired of a fight they had first supported, and not by majority.