Andres Lopez, center, walks past a banner featuring an image of father, Andres Manuel Lopez Obrador, a two-time Mexican presidential challenger, outside the Senate building in Mexico City, Friday, ... more 
Andres Lopez, center, walks past a banner featuring an image of father, Andres Manuel Lopez Obrador, a two-time Mexican presidential challenger, outside the Senate building in Mexico City, Friday, Dec. 6, 2013. For a second day, the Mexican Senate postponed debating the energy reform bill presented by President Enrique Pena Nieto. (AP Photo/Marco Ugarte) less 
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Associated Press | Photo By Marco Ugarte
Sat, Dec 7, 2013 2:27 PM EST