BOSTON, MA - NOVEMBER 07:  Republican presidential candidate, Mitt Romney, waves to the crowd while speaking at the podium as he concedes the presidency during Mitt Romney's campaign election night event at the Boston Convention & Exhibition Center on November 7, 2012 in Boston, Massachusetts. After voters went to the polls in the heavily contested presidential race, networks projected incumbent U.S. President Barack Obama has won re-election against Republican candidate, former Massachusetts Gov. Mitt Romney.  (Photo by Joe Raedle/Getty Images)