Meanwhile, his administration has deported more illegal immigrants than any president in history.

President Obama kept his campaign promise to reform the nation’s health care system. While the resulting law has been highly controversial, the Supreme Court upheld its major provisions.

He pushed for, and Congress approved, a $787 billion economic stimulus package and then implemented a bailout for American automakers General Motors and Chrysler.

On President Obama’s watch, Osama bin Laden, blamed for the September 11, 2001 terror attacks, was located in Pakistan and killed in a surprise military operation.

The president withdrew US forces from Iraq, increased the number of troops in Afghanistan and signed a new arms control treaty with Russia.

Barack Obama is the first African-American to be elected president. He also is the first sitting president to support legalizing same sex marriage.

In public opinion polls, Mr. Obama scores high on likeability, but Americans view his rival Mitt Romney as better able to handle the economy.

Barack Obama was born in Hawaii in 1961. He and his wife Michelle have two daughters, Malia and Sasha.

Vice President Joe Biden will again join Mr. Obama on the Democratic ticket. Biden was a six-term US senator and is considered a foreign policy expert, having chaired the Senate's Foreign Relations Committee.

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