Dee ihe ga-aga n'ihu na paragraf a - Obama mụrụ na Honolulu, Hawaii. Mgbe ọ gụsịrị akwụkwọ na Mahadum Columbia na 1983, ọ rụrụ ọrụ dị ka onye nhazi obodo na Chicago. N'afọ 1988, ọ debara aha ya na Harvard Law School, ebe ọ bụ onye isi ojii mbụ nke "Harvard Law Review". Mgbe ọ gụsịrị akwụkwọ, ọ ghọrọ onye ọka iwu ikike obodo na onye agụmakwụkwọ, na-akụzi iwu iwu na Mahadum Chicago Law School site na 1992 ruo 2004. N'ịtụgharị na ndọrọ ndọrọ ọchịchị, ọ nọchitere anya mpaghara nke 13 na Illinois Senate site na 1997 ruo 2004, mgbe ọ gbara ọsọ maka Senate US. Obama nwetara nlebara anya mba na 2004 site na mmeri ya na March Senate mbụ, nke ọma natara July Democratic National Convention
isi okwu ya, na ntuli aka ya nke November na Senate. N'afọ 2008, otu afọ ka ọ malitechara mkpọsa ya, na mgbe ọ gbasịrị mbọ ike megide Hillary Clinton, ndị Democratic Party họpụtara ya ịbụ onye isi ala. A họpụtara Obama karịa onye Republican a họpụtara John McCain na ntuli aka izugbe wee guzobe ya n'akụkụ onye na-agba ọsọ ya, Joe Biden, na Jenụwarị 20, 2009. Ka ọnwa itoolu gachara, a họpụtara ya ka ọ bụrụ onye a ga-enye ihe nrite Nobel maka udo n'afọ 2009.