Presidential candidate Enrique Pena Nieto, of the Revolutionary Institutional Party (PRI), right, reaches to kiss his wife Angelica Rivero during a campaign event with women in Guadalajara, Mexico, Friday March 30, 2012. The four candidates for Mexico's presidency officially launched their campaigns for the July 1 election on Friday, all of them promising change.  (AP Photo/Bruno Gonzalez) Photo: Bruno Gonzalez, Associated Press / AP
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