Mitt Romney, Republican presidential candidate, from left,... News Photo2012 United States Presidential Election,Adult,Ann Romney,Boston - Massachusetts,Democracy,Election,Exhibition,Following,Government,Greeting,Horizontal,Janna Ryan,Massachusetts,Mitt Romney,Morning,North,North America,Paul Ryan - Politician,Political Rally,Politics,President,Presidential Candidate,Presidential Election,Republican Party,Speech,The Americas,The Media,USA,United States Presidential Election,Voting,Wife,WomenPhotographer Collection: Bloomberg 2012 BloombergMitt Romney, Republican presidential candidate, from left, Representative Paul Ryan, Republican vice presidential candidate, and their wives Ann Romney and Janna Ryan greet one another following 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