** FILE ** In this Friday July 14, 2006, file photo, teachers' union head Elba Esther Gordillo gestures as she arrives to attend a meeting with education workers a day after being expelled from Mexico's Institutional Revolutionary Party in Mexico City. (AP Photo/Dario Lopez-Mills, file)

Photo by: DARIO LOPEZ-MILLS

** FILE ** In this Friday July 14, 2006, file photo, teachers' union head Elba Esther Gordillo gestures as she arrives to attend a meeting with education workers a day after being expelled from Mexico's Institutional Revolutionary Party in Mexico City. (AP Photo/Dario Lopez-Mills, file)