A supporter of Republican presidential nominee Mitt Romney holds up flags during his election night rally in Boston.
The Empire State Building is lit up in blue, the color of the Democratic party, after President Barack Obama was projected to win the electoral votes in New York.
Supporters of President Obama celebrate the news of his victory in the 2012 presidential election outside the White House in Washington.
People celebrate in Times Square after President Barack Obama was projected to win the U.S. presidential election in New York.
A supporter of President Barack Obama celebrates during his election night victory rally in Chicago.
Supporters of President Barack Obama cheer during his election night rally in Chicago.
More scenes from President Obama's victory rally in Chicago.
Craig Romney, son of GOP presidential challenger Mitt Romney, listens to "The Star Spangled Banner" at the start of an election night rally in Boston.
A supporter takes pictures of the stage at the election night rally for Mitt Romney in Boston.
Supporters cheer as they watch voting returns at the election night rally for Romney in Boston.
Gov. Mitt Romney concedes the race for the White House to President Barack Obama.
President Obama addresses the nation after winning a second term.