A copy of U.S. President Barack Obama's book "The Audacity of Hope" is held by a supporter looking for an autograph during a campaign rally at George Mason University in Fairfax

 
A copy of U.S. President Barack Obama
A copy of U.S. President Barack Obama's book "The Audacity of Hope" is held by a supporter looking for an autograph during a campaign rally at George Mason University in Fairfax, Virginia, October 19, 2012. REUTERS/Jason Reed