I did a brief check on three Republican and three Democratic senators. I found no substantial differences in their resumes (outside of Lamar Alexander, REPUBLICAN, who has an impressive private sector resume). The remaining five have basically made their livings working for the government. Below are my results, researched from Project Vote Smart:
Lamar Alexander (R-TN)
Law Firm of Fowler, Roundree and Robertson, Lawyer, 1993-present
Law Firm of Baker, Worthington, Crossley, Stansberry and Woolf, Lawyer, 1998
Law Firm of Baker, Donelson, Bearman and Caldwell, Lawyer, 1993-1995
Republican Exchange Satellite Network, Chair, 1993-1995
University of Tennessee, President, 1988-1991
Leadership Institute at Belmont University, Chair, 1987-1988
Corporate Child Care Services with 1200 employees today, Founded with wife in 1987
WSM Television in Nashville, Commentator, 1975-1977
Law Firm of Dearborn and Ewing, Lawyer, Founding Partner, 1970-1976
Law Clerk to US Circuit Court Judge John Minor Wisdom, 5th Circuit Court of Appeals, New Orleans, 1965-1966
Author of 4 books on Tennessee/Politics/Life.
Joseph Biden (D-DE)
Adjunct Professor, Widener University School of Law, 1991-present
Attorney, Private Practice, 1968-1972.
Saxby Chambliss (R-GA)
Attorney, Business Law and Agricultural Law
Partner, Moultrie Inn.
Hillary Clinton (D-NY)
First Lady, President Bill Clinton, 1992-2000
Law School Professor
Lawyer.
Elizabeth Dole (R-NC)
President, American Red Cross
Secretary of Labor, 1989-1990
Transporation Secretary, 1983-87.
Edward Kennedy (D-MA)
Attorney
Assistant District Attorney, Suffolk County, 1961-1962
Private First Class, United States Army, 1951-1953.