US election: President Barack Obama beats Mitt Romney to the White House (41pics)
US President Barack Obama waves as he walks on stage with his wife Michelle and daughters Malia and Sasha at his election night party in Chicago
Michelle Obama hugs her husband at his election night victory party in Chicago
President Barack Obama hugs Vice President Joe Biden after his speech at his election night party
Republican presidential candidate Mitt Romney concedes defeat at the Boston Convention & Exhibition Centre
Mitt Romney and Paul Ryan hug, and their wives Ann Romney and Janna Ryan hug, after Romney delivered his concession speech
Jon Captain America Angell salutes at the Minnesota Republican election headquarters as Mitt Romney concedes the election
Mitt Romney, standing under an 'Exit' sign, talks to members of the media aboard his campaign plane en route to Boston, Massachusetts
US President Barack Obama arrives on stage in Chicago after winning the 2012 US presidential election
Vice President Joe Biden roars as he celebrates the election win during Obama's election night rally in Chicago
Left: Democratic presidential candidate Barack Obama waves to supporters during his election night victory rally at Grant Park in Chicago on November 4, 2008. RIght: US President Barack Obama arrives on stage in Chicago after being re-elected in the 2012 US presidential election on November 7, 2012.
President Barack Obama and First Lady Michelle Obama embrace Vice President Joe Biden and Dr. Jill Biden moments after the television networks called the election in their favour, while watching election returns at the Fairmont Chicago Millennium Park in Chicago, Ill.
The Empire State Building in New York is lit up with blue light, the colour of the Democrats, to represent another four years for President Obama...
.The Empire State Building had been lit up in red, white and blue, tracking real-time voting results of the 2012 Presidential Election
US President Barack Obama smiles during his election night victory speech in Chicago
Supporters of US President Barack Obama celebrate the news of his victory outside the White House in Washington, DC
People celebrate in Times Square, New York, after Barack Obama was projected to win the presidential election
A campaign sign left by Mitt Romney supporters sits on empty chairs at a Republican election night party in Las Vegas
A large media group waits for President Barack Obama to arrive at his election night rally in Chicago
A man watches results of the US presidential elections at US President Barack Obama's election night event in Chicago
Supporters of President Barack Obama, Shauna Harry, left, and Alana Hearn celebrate by leaping in the air at New York State Democratic Headquarters
Jessica Clark celebrates Barack Obama's win in Times Square in New York City
A woman celebrates as she and others watch election results broadcast confirming the re-election of President Barack Obama at Melba's 25 at the Harlem State Office building in New York
A photograph tweeted by Barack Obama after he won a second term in the White House
Tammy Baldwin waves to supporters after delivering her victory speech in Wisconsin's Senate race. She defeated former Wisconsin Governor Tommy Thompson, to become the nation's first openly gay senator.
Joseph Kennedy III, grandson of the late Robert F Kennedy, delivers his victory speech, in Newton, Massachusetts. He beat Republican businessman Sean Bielat in the race to replace retiring congressman Barney Frank.
Romney supporters react to the election results at a Republican event at the Boston Convention & Exhibition Center in Boston, Massachusetts
Dave Moyar, dressed as Abraham Lincoln, watches results come in at the Republican headquarters in Salt Lake City, Utah
Romney supporters react after hearing that President Barack Obama was declared the winner at an election night watch party at The Venetian in Las Vegas, Nevada
Romney supporter Merav Bader reacts as a state is called for President Barack Obama at an election night party at The Venetian in Las Vegas, Nevada
A Romney supporter looks anxious as she watches election results come in during Republican candidate Mitt Romney's election night rally in Boston
Obama supporters celebrate the news that President Obama has been re-elected at the Democrat's election night party at the Sheraton Hotel in Salt Lake City, Utah
Supporters of U.S. Rep. Michele Bachmann listen to the news that Barack Obama was projected to defeat Mitt Romney in Ohio during their rally for Bachmann in Bloomington, Minnesota
Romney supporters comfort each other after hearing that President Barack Obama has been declared the winner at an election night watch party at The Venetian in Las Vegas, Nevada
A supporter of US President Barack Obama carries a fellow suporter on his shoulders holding a banner reading 'We Have Overcome'
Supporters of President Barack Obama react to favorable media projections at the McCormick Place during an election night watch party in Chicago
Supporters of US President Barack Obama react to election returns at a party sponsored by the Democratic Party of Georgia in Atlanta, Georgia
A supporter of U.S. President Barack Obama attends the Obama Election Night watch party at McCormick Place in Chicago, Illinois
Supporters of US President Barack Obama celebrate the result at the McCormick Place in Chicago, Illinois
A man dressed as Cookie Monster watches large screens in Times Square as projected results in the 2012 US presidential election are broadcast in New York
Former Democratic state Rep. Joyce Beatty, left, celebrates with Rev. Jesse Jackson at the Ohio Democratic party election night celebration in Columbus, Ohio
Barack Obama and the US Election: A man holds a sign in support of the President
Supporters of US presidential candidates Mitt Romney and Barack Obama react together as they watch the exit polls during the get together called President's Night, in De Melkweg, downtown Amsterdam, the Netherlands