Vice President Joe Biden salutes after arriving to speak before the 2012 National Educational Association annual meeting, Tuesday, July 3, 2012, in Washington. (AP Photo/Evan Vucci)

Photo by: Evan Vucci

Vice President Joe Biden salutes after arriving to speak before the 2012 National Educational Association annual meeting, Tuesday, July 3, 2012, in Washington. (AP Photo/Evan Vucci)