Obama gives a victory speech before tens of thousands of supporters in Chicago's Grant Park after winning the 2008 Presidential election.
Obama is sworn in as a U.S. Senator from the state of Illinois.
The former President is first sworn in to the Illinois State Senate, where he would serve for seven years.
Obama meets former First Lady, Michelle Obama, while working as a summer associate at the Chicago law firm, Sidley Austin.
Obama returns to the state of his birth, Hawaii, after spending four years with his mother in Indonesia.
