- Barack Hussein Obama II is an American attorney and politician who served as the 44th president of the United States from 2009 to 2017.
- A member of the Democratic Party, he was the first African American to be elected to the presidency.
- He previously served as a U.S. senator from Illinois from 2005 to 2008 and an Illinois state senator from 1997–2004.
- After graduating from Columbia University in 1983, he worked as a community organizer in Chicago. In 1988, he enrolled in Harvard Law School, where he was the first black president of the Harvard Law Review.
- After graduating, he became a civil rights attorney and an academic, teaching constitutional law at the University of Chicago Law School from 1992 to 2004.
- In 2008, he was nominated for president a year after his campaign began and after a close primary campaign against Hillary Clinton.
- He was elected over Republican John McCain and was inaugurated on January 20, 2009. Nine months later, he was named the 2009 Nobel Peace Prize laureate.
- The main reform that he passed include the Patient Protection and Affordable Care Act (often referred to as "Obamacare", shortened as the "Affordable Care Act")
- After winning re-election by defeating Republican opponent Mitt Romney, Obama was sworn in for a second term in 2013.