Joining us to deconstruct the relationship between President Obama and Mexico's President Peña Nieto as the two meet today is Shannon O'Neil. She's a senior fellow at the Council of Foreign Relations, and author of the new book, "Two Nations Indivisible: Mexico, the United States, and the Road Ahead."

US President Barack Obama shakes hands with President-elect Enrique Pena Nieto of Mexico during a bilateral meeting in the Oval Office at the White House in Washington on November 27, 2012. Pena Nieto, a member of the Institutional Revolutionary Party (PRI), takes office on December 1, replacing Felipe Calderon from the conservative National Action Party (PAN), five months after his election victory.
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JEWEL SAMAD/AFP/Getty Images
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