President Barack Obama waves as he walks out of the White House in Washington, Friday, Oct., 19, 2012, before his departure on Marine One helicopter for a trip to the presidential retre

 

              President Barack Obama waves as he walks out of the White House in Washington, Friday, Oct., 19, 2012, before his departure on Marine One helicopter for a trip to the presidential retre
President Barack Obama waves as he walks out of the White House in Washington, Friday, Oct., 19, 2012, before his departure on Marine One helicopter for a trip to the presidential retreat at Camp David, Md., to spend the weekend preparing for his final presidential debate.(AP Photo/Pablo Martinez Monsivais)