Barack Hussein Obama ( born August 4, 1961) is the 44th and current president of united ststa, having taken office in 2009. He is the firsth African American to hold the office. Obama previously served as a united state senator, from January 2005 until he resigned after his election to the presidency in November 2008.
A native of Obama is a graduate of Columbia university and Hardward law school, where he was the president. He was a community organization in Chicago before earning his law degree. He worked as a civil rights attorney in Chicago and taught constitutional law from 1992 to 2004.
Obama serverd three times in the Illusion senate from 1997 to 2004. Following an unsuccessful bid against the Democratic incumbent for a seat in the united state House of representative in 2000, he ran for United states senate in 2004. Several events brought him to national attention during the campaign, including his victory in the March 2004 Democratic primary and his keynote address at the Democratic national government in July 2004. He won election to senate in November 2004. His presidential campaign began in February 2007, and after a close champion in against Hillary Rod ham Clinton, he won his party's nomination. In the general 2008 election, he defeated Republical nominee and was on January 20, 2009.