Delaware Sen. Biden was elected to the U.S. Senate in 1972 at the age of 29, after serving on the New Castle County Council and practicing law.

Kovac was born and raised in the Third District and after attending Harvard University and living in New York, he is calling it home again.

Faraj is the president of the Riverwest Neighborhood Association, one of the most active neighborhood groups in the city. She is a former real estate broker and owner of Empire Bakers and Commonwealth Realty.

Walker moved from Delavan to Milwaukee to attend Marquette University, which he left before graduating to work for the Greater Milwaukee Chapter of the American Red Cross.

Fred Thompson is no stranger to the spotlight. Born in Alabama, Thompson began his professional career as an assistant U.S. attorney, and by 1973 was earning TV time for his role as the minority counsel in the Watergate scandal hearings.

Born in Detroit, Michigan, Mitt Romney graduated from Harvard and began a long, profitable career in business, working for management consulting and investment firms.

Born in America-controlled Panama, John McCain followed in the footsteps of his father and grandfather and pursued a career in the navy, graduating from the Annapolis academy in 1958.

Brooklyn-born Giuliani is a former U.S. Attorney for the Southern District of New York, where he became known for bringing cases against organized crime families and white collar crime.

This California native served in Vietnam before attending law school in San Diego. He practiced law before being elected to the U.S. House of Representatives as part of the 1980 “Reagan revolution.”

Huckabee was born in Hope, Ark., the hometown of former President Bill Clinton. The ordained Southern Baptist minister got involved in politics in 1992, when he ran for U.S. Senate and lost.