** FILE ** Former Secretary of State Colin Powell attends the unveiling of the official portraits of former President George W. Bush and former first lady Laura Bush in the East Room of the White House in Washington on Thursday, May 31, 2012. (AP Photo/Pablo Martinez Monsivais)

Photo by: Pablo Martinez Monsivais

** FILE ** Former Secretary of State Colin Powell attends the unveiling of the official portraits of former President George W. Bush and former first lady Laura Bush in the East Room of the White House in Washington on Thursday, May 31, 2012. (AP Photo/Pablo Martinez Monsivais)