Following high school, Obama moved to Los Angeles, where he studied at Occidental College for two years. He then transferred to Columbia University in New York City, where he majored in political science with a specialization in international relations.
Obama graduated with a B.A. from Columbia in 1983, then worked for a year at the Business International Corporation and then at the New York Public Interest Research Group a non-partiotism political group.
After four years in New York City, Obama moved to Chicago to work as a community organizer for three years from June 1985 to May 1988 as director of the Developing Communities Project (DCP), a church-based community organization originally comprising eight Catholic parishes in Greater Roseland (Roseland, West Pullman, and Riverdale) on Chicago’s far South Side. During his three years as the DCP’s director, its staff grew from 1 to 13 and its annual budget grew from $70,000 to $400,000, with accomplishments including helping set up a job training program, a college preparatory tutoring program, and a tenants’ rights organization in Altgeld Gardens. Obama also worked as a consultant and instructor for the Gamaliel Foundation, a community organizing institute.
Obama entered Harvard Law School in late 1988. At the end of his first year, he was selected, based on his grades and a writing competition, as an editor of the Harvard Law Review. In February 1990, in his second year, he was elected president of the Law Review, a full-time volunteer position functioning as editor-in-chief and supervising the Law Review’s staff of 80 editors.
Obama’s election as the first black president of the Law Review was widely reported and followed by several long, detailed profiles. During his summers, he returned to Chicago where he worked as a summer associate at the law firms of Sidley & Austin in 1989 and Hopkins & Sutter in 1990. He graduated with a Juris Doctor (J.D.) magna cum laude from Harvard in 1991.
The publicity from his election as the first black president of the Harvard Law Review led to a publishing contract and advance for a book about race relations. In an effort to recruit him to their faculty, the University of Chicago Law School provided Obama with a fellowship and an office to work on his book.
He originally planned to finish the book in one year, but it took much longer as the book evolved into a personal memoir. In order to work without interruptions, Obama and his wife, Michelle, traveled to Bali where he wrote for several months. The manuscript was finally published in mid-1995 as Dreams from My Father.
Obama directed Illinois’s Project Vote from April to October 1992, a voter registration drive with a staff of 10 and 700 volunteers and which achieved its goal of registering 150,000 of 400,000 unregistered African-Americans in the state, and led to Crain’s Chicago Business naming Obama to its 1993 list of "40 under Forty" powers to be.
Beginning in 1992, Obama taught constitutional law at the University of Chicago Law School for twelve years, being first classified as a Lecturer from 1992 to 1996, and then as a Senior Lecturer from 1996 to 2004.
He also, in 1993, joined Davis, Miner, Barnhill & Galland, a 12-attorney law firm specializing in civil rights litigation and neighborhood economic development, where he was an associate for three years from 1993 to 1996, then of counsel from 1996 to 2004, with his law license becoming inactive in 2002.
Obama was a founding member of the board of directors of Public Allies in 1992, resigning before his wife, Michelle, became the founding executive director of Public Allies Chicago in early 1993. He served from 1993 to 2002 on the board of directors of the Woods Fund of Chicago, which in 1985 had been the first foundation to fund Obama’s DCP, and served from 1994 to 2002 on the board of directors of The Joyce Foundation. Obama served on the board of directors of the Chicago Annenberg Challenge from 1995–2002, as founding president and chairman of the board of directors from 1995–1999. He also served on the board of directors of the Chicago Lawyers’ Committee for Civil Rights Under Law, the Center for Neighborhood Technology, and the Lugenia Burns Hope Center.
He was elected to the Senate in November 2004 with 70% of the vote.

Who else running has these brains and ambition?

And he can add "President of the United States" next January.