Who served as President of the United States during a period marked by significant economic recovery following the 2008 financial crisis, the passage of the Affordable Care Act, and the killing of Osama bin Laden?

1. He was a community organizer and civil rights attorney before entering politics.
2. He represented Illinois in the U.S. Senate.
3. His father was from Kenya.
4. He authorized the raid that led to the death of a prominent terrorist leader in Pakistan.