Barack Hussein Obama II (/bəˈrɑːk huːˈseɪn oʊˈbɑːmə/ ( listen); born August 4, 1961) is an American politician who served as the 44th President of the United States from January 20, 2009 to January 20, 2017. The first African American to assume the presidency, he was previously the junior United States Senator from Illinois from 2005 to 2008. Before that, he served in the Illinois State Senate from 1997 until 2004.
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