
President Bush listens to Nancy Jara read during a visit to the Association for the Advancement of Mexican Americans Headquarters Summer Reading Camp Friday, June 14, 2002, in Houston . The President during his visit said the terrorists who conducted the car bombing at the U.S. consulate in Karachi Pakistan " are radical killers" with no regard for human life. (AP Photo/Rick Bowmer) Picture: A widely-circulated photo appeared to show President George W. Bush holding a picture book upside down while reading with children during a 2002 Houston school visit. Controversy: The photo gave visual ammunition to Mr. Bush’s detractors and political opponents, many of whom caricatured the president as, well, not so bright. Verdict: Fake. Comparison to an original Associated Press photograph shows that the book’s “upside-down†cover was digitally altered.

** FILE ** In this Feb. 11, 2012, file photo, Sarah Palin, the GOP candidate for vice-president in 2008, and former Alaska governor speaks in Washington. Sarah Palin and George W. Bush won’t be in Tampa. (AP Photo/J. Scott Applewhite)

** FILE ** In this Feb. 11, 2012, file photo, Sarah Palin, the GOP candidate for vice-president in 2008, and former Alaska governor speaks in Washington. Sarah Palin and George W. Bush won’t be in Tampa. (AP Photo/J. Scott Applewhite)

President George W. Bush (center) kisses Hillary Clinton while putting his arm around former President Bill Clinton before the inauguration of Barack Obama as the 44th President of the United States at the Capitol in Washington, D.C. Tuesday, January 20, 2009. (Michael Connor / The Washington Times)

Colin L. Powell served as secretary of state under President George W. Bush and was mentioned as a Republican presidential candidate before that. But in 2008 and again in 2012, Mr. Powell endorsed Democrat Barack Obama, spurring talk of a divorce between the GOP and the retired four-star Army general. (Associated Press)

** 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)

** FILE ** In this Monday, Sept. 24, 2012, file photo George P. Bush, right, stands with his uncle former President George W. Bush, left, during the Bush Center Warrior Open in Irving, Texas. George P. Bush, the 36-year-old attorney from Fort Worth and son of former Florida Gov. Jeb Bush has taken steps toward seeking elected office in Texas, and his father has said his son is considering a run for the state’s land commissioner. (AP Photo/LM Otero, File)

** FILE ** In this Monday, Sept. 24, 2012, file photo George P. Bush, right, stands with his uncle former President George W. Bush, left, during the Bush Center Warrior Open in Irving, Texas. George P. Bush, the 36-year-old attorney from Fort Worth and son of former Florida Gov. Jeb Bush has taken steps toward seeking elected office in Texas, and his father has said his son is considering a run for the state’s land commissioner. (AP Photo/LM Otero, File)

**FILE** Gen. Norman Schwarzkopf (left) looks on as President George Bush speaks to reporters in the Rose Garden of the White House on April 23, 1991. Bush praised the general for leading a "fantastic" effort to fulfill U.S. obligations in the Gulf and for helping to build "unbelievable" morale on the home front. (Associated Press)