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He served one term in the US Senate before running for president and winning in 2008. Barack Obama before becoming president served in the US senate for less than 2 years and in the Illinois legislature. In both positions he was the most liberal person in the legislative body.
Was There an African American President Before Barack Obama? Someone that I know has been posting that Barack Obama is not the first African-American President, that indeed there was an African-American President before him, John Hanson.