President Barack Obama salutes Marines honor guards as he boards the Marine One at Andrews Air Force Base, Md., for Camp David, Saturday, Aug. 4, 2012. President Obama celebrated his 51st birthday Saturday with a round of golf and plans for a quiet weekend at Camp David, taking a break from campaigning three months before Election Day. (AP Photo/Manuel Balce Ceneta)
Read the article: Obama turns 51; plays golf, heads to Camp David
