US polls 2012 FACTBOX: US President Barack Obama

- The centerpiece of his domestic agenda was the Affordable Care Act, the healthcare reform law better known as Obamacare. Its purpose is to give all Americans affordable insurance and more protections but critics say it is expensive federal interference. A key aspect of the reform - requiring most Americans to get insurance or pay a penalty - survived a 2012 U.S. Supreme Court challenge.

- Obama has a reputation as a charming communicator but he also is criticized for being aloof and not building better relationships with congressional leaders. Some have questioned his preparation skills, especially after a poor performance in a presidential debate with Republican opponent Mitt Romney.

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