Barack Hussein Obama II  conceived August 4, 1961) is an American legislator who is 44th President of the United States and the principal African American to hold the workplace. Conceived in Honolulu, Hawaii, Obama is an alum of Columbia University and Harvard Law School, where he served as president of the Harvard Law Review. He was a group coordinator in Chicago in the witness of gaining his law degree. He functioned as a social liberties lawyer and taught established law at University of Chicago Law School somewhere around 1992 and 2004. He served three terms speaking to the thirteenth District in the Illinois Senate from 1997 to 2004, and ran unsuccessfully in the Democratic essential for the United States House of Representatives in 2000 against occupant Bobby Rush. 

In 2004, Obama got national consideration amid his crusade to speak to Illinois in the United States Senate with his triumph in the March Democratic Party essential, his keynote address at the Democratic National Convention in July, and his decision to the Senate in November. He started his presidential crusade in 2007 and, after a nearby essential battle against Hillary Rodham Clinton in 2008, he won adequate representatives in the Democratic Party primaries to get the presidential designation. He then vanquished Republican chosen one John McCain in the general race, and was introduced as president on January 20, 2009. Nine months after his initiation, Obama was named the 2009 Nobel Peace Prize laureate. 

Amid his initial two years in office, Obama marked into law monetary boost enactment in light of the Great Recession as the American Recovery and Reinvestment Act of 2009 and the Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010. Other significant household activities in his first term incorporated the Patient Protection and Affordable Care Act, regularly alluded to as "Obamacare"; the Dodd–Frank Wall Street Reform and Consumer Protection Act; and the Don't Ask, Don't Tell Repeal Act of 2010. In remote approach, Obama finished U.S. military inclusion in the Iraq War, expanded U.S. troop levels in Afghanistan, marked the New START arms control settlement with Russia, requested U.S. military contribution in Libya contrary to Muammar Gaddafi, and requested the military operation that brought about the demise of Osama canister Laden. In January 2011, the Republicans recaptured control of the House of Representatives as the Democratic Party lost a sum of 63 seats; and, after a protracted civil argument over government spending and regardless of whether to raise the country's obligation limit, Obama marked the Budget Control Act of 2011 and the American Taxpayer Relief Act of 2012. 

Obama was reelected president in November 2012, overcoming Republican chosen one Mitt Romney, and was confirmed for a brief moment term on January 20, 2013. Amid his second term, Obama has elevated household arrangements identified with weapon control because of the Sandy Hook Elementary School shooting, and has called for more noteworthy comprehensiveness for LGBT Americans, while his organization has documented briefs which encouraged the Supreme Court to strike down part of the government Defense of Marriage Act and state level same-sex marriage bans as unlawful. In outside arrangement, Obama requested U.S. military intercession in Iraq because of increases made by the Islamic State after the 2011 withdrawal from Iraq, proceeded with the procedure of completion U.S. battle operations in Afghanistan, elevated discourses that prompted the 2015 Paris Agreement on worldwide environmental change, expedited an atomic manage Iran, and standardized U.S. relations with Cuba.