Ann Romney, left, wife of Republican presidential candidate Mitt... NachrichtenfotoAmerikanische Kontinente und Regionen,Ann Romney,Ausstellung,Boston,Demokratie,Ehefrau,Erwachsene Person,Familie,Folgen,Frauen,Horizontal,Massachusetts,Medienwelt,Menschen,Menschenmenge,Mitt Romney,Morgen,Nordamerika,Norden,Paul Ryan - Politiker,Politik,Politische Versammlung,Politische Wahl,Präsident,Präsidentenwahl,Präsidentschaftskandidat,Regierung,Republikanische Partei,Stehen,Stimmabgabe,US-Präsidentschaftswahl,US-Präsidentschaftswahl 2012,USA,Vor Publikum sprechen,WinkenPhotographer Collection: Bloomberg 2012 BloombergAnn Romney, left, wife of Republican presidential candidate Mitt Romney, fourth left, and Representative Paul Ryan, Republican vice presidential candidate, right, wave to the crowd as they stand with their families following Mitt Romney's concession speech during an election rally at the Boston Convention and Exhibition Center in Boston, Massachusetts, U.S., in the early morning on Wednesday, Nov. 7, 2012. President Barack Obama, the post-partisan candidate of hope who became the first black U.S. president, won re-election today by overcoming four years of economic discontent with a mix of political populism and electoral math. Photographer: Andrew Harrer/Bloomberg via Getty Images