President
Barack Obama has been re-elected for a second term as president of the
United States, beating his rival, Republican Mitt Romney.
Polls predicted a very tight race, but Mr Obama managed to
secure the required 270 electoral college votes - and more - before the
clock struck midnight on the east coast.
Mr Obama has one big thing going for him: voters seem to like
him personally, and many remain loyal to him even while frustrated by
the nation's lingering hangover from the recession.
His campaign team appears to have enticed many of his 2008
supporters back to the polls, while also persuading undecided voters
that Mr Romney was not the man they wanted to lead the country.
Oratory, charm, background
Mr Obama took office amid one of the worst recessions in
decades. And as the nation went back to the polls, the US unemployment
rate hovered stubbornly just below 8%.
Barack Obama's CV
- Born 4 Aug 1961 in Hawaii
- Studied law at Harvard
- Worked as a civil rights lawyer in Chicago
- Served in Illinois state senate 1996-2004
- Elected to the US Senate in 2004
- Bested Hillary Clinton to win the Democratic presidential nomination
- Won the 2008 presidential election, defeating Republican Senator John McCain
The Democratic Party suffered
historic losses in the mid-term polls in November 2010, with the
Republicans emerging energised and more determined than ever to promote
their conservative agenda and stymie the president's plans.
Mitt Romney and the Republicans hoped that Mr Obama would be
unable to inspire the same enthusiasm that carried him to the White
House and that independent voters would dump him amid a still-lagging
economy.
Barack Hussein Obama made history on 4 November 2008 when he
easily defeated Republican rival John McCain to become the first black
president of the United States.
Aged 47 when he was inaugurated, Mr Obama was also the first
urban president since Harry Truman, and the first president born in
Hawaii.

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President-elect Barack Obama's 2008 victory speech
And unlike John McCain, George Bush and Bill Clinton, his
background was not steeped in the Vietnam War or the cultural conflicts
of the 1960s.
During his challenging first term in office, Mr Obama and his fellow Democrats scored several historic achievements.
They overcame stiff Republican opposition to pass an economic
stimulus programme, overhauled the US healthcare system, laid down new
rules for Wall Street and the banking industry, and rescued the US auto
industry from collapse.
Later, he and the Democrats overturned a two-decade-old law banning openly gay Americans from serving in the US military.
Wielding his presidential authority, Mr Obama also acted
without the consent of Congress to grant temporary legal status to some
young illegal immigrants brought to the US as children.
International upbringing
Mr Obama despatched a team of commandos to kill Osama Bin
Laden, brought the US war in Iraq to a close and struck a new nuclear
arms treaty with Russian President Dmitry Medvedev.
A White House image of President Obama in the situation room as US commandos killed Bin Laden
Early in his presidency he escalated the US-led war in
Afghanistan. But Mr Obama has since brought home the 33,000 extra troops
he sent to that theatre of conflict.
He also committed the US to turn the security mission over to
Afghan troops by the end of 2014, in an attempt to end a war that began
more than a decade ago.
Mr Obama was born in 1961 and named after his father, a
Kenyan intellectual who met the future president's mother, Ann, a white
teenager from Kansas, while studying at the University of Hawaii.
When Mr Obama was a toddler, his father abandoned the family
and the couple divorced. Father and son were to meet only once more,
during a brief visit to Hawaii in 1971 by the elder Barack Obama. He
died in a car crash in 1982 in Nairobi.
When Mr Obama was six, his mother married an Indonesian man
and the family moved to Jakarta. Then known as "Barry", Mr Obama later
moved back to Hawaii, where he was raised mainly by his grandparents.
Mr Obama's upbringing in Indonesia, the world's largest
Muslim country by population, and his Kenyan-Muslim heritage fuelled
right-wing conspiracy theories that he was not born in the US, or that
he was a secret Muslim.
In 2008 and 2011, Mr Obama produced two separate copies of
his birth certificate to prove that he had been born in the US state of
Hawaii.
After graduating from Columbia University in New York, Mr
Obama worked for three years as a community organiser in poor
neighbourhoods in Chicago.
He then attended Harvard Law School, becoming the first African-American president of the Harvard Law Review.
While working at a Chicago law firm, he met Michelle
Robinson. The couple married in 1992 and have two daughters, Malia and
Sasha; the Obamas became the first couple since Jimmy and Rosalynn
Carter to live in the White House with young children.
After Harvard, Mr Obama returned to Chicago to practise civil
rights law, representing victims of housing and employment
discrimination.
"Barry" Obama only met his father once after Barack Obama Sr left the family to study at Harvard
He joined the law faculty at the University of Chicago, where
he was lauded as a popular teacher and an exceptional legal thinker.
In 1995 he published his first book, Dreams from My Father, a
memoir, and the following year he was elected to the Illinois state
senate.
As a state senator, he spoke out strongly against the coming
Iraq war, a position that later helped him win early support in the
Democratic primary race.
Mr Obama tried to run for Congress in 2000, but was thrashed by the incumbent in a Democratic primary.
But four years later he was back, running for the US Senate.
He won that campaign after electrifying the Democratic National
Convention with a speech about self-reliance, aspiration and national
unity.
After his landslide election to the Senate a few months
later, he became one of the most visible figures in Washington, and soon
published a second best-selling book, a politics-and-policy tract
entitled The Audacity of Hope.
On Capitol Hill, Mr Obama established a liberal voting record,
but also worked with Republican colleagues on HIV/Aids-education and
prevention and nuclear weapons proliferation.
When he embarked on his presidential campaign in February
2007, he had been in the Senate only two years, and his opponents sought
to cast him as ill-prepared for the presidency.
But his campaign excited millions of liberals - especially
young voters - who were yearning for something new in Washington after
two terms under George W Bush.
Mr Obama clinched the Democratic nomination after a long and
gruelling battle against former first lady Hillary Clinton, whom he
later appointed secretary of state.
Economic dissatisfaction
His victory over septuagenarian Republican Senator John McCain
was aided in part by public perceptions that Republican policies had
contributed to the economic tumble - and that Mr McCain was not the
candidate to steer the nation to recovery.
Now, Mr Obama and his team of strategists and advisers have secured four more years in office.
Employment figures have slowly climbed, the housing market is showing signs of a comeback and consumer confidence is up.
But there lingers among the electorate a widespread sense of unease and dissatisfaction with the way things are going.
Mr Romney, his vice-presidential running mate Paul Ryan, and
the Republican Party had their campaign bolstered by big-spending
patrons eager to despatch Mr Obama to political oblivion.
They blamed Mr Obama's policies for the ongoing economic
malaise, and hoped voters would overcome their fondness for - and
political investment in - him. The electorate judged otherwise.