[PAR] [TLE] Dianne Feinstein [SEP] Dianne Goldman Berman Feinstein ( ; born Dianne Emiel Goldman; June 22, 1933) is the senior United States Senator from California.  A member of the Democratic Party, she has served in the Senate since 1992.  She also served as the 38th Mayor of San Francisco from 1978 to 1988. [PAR] [TLE] Tom Campbell (California politician) [SEP] Thomas John Campbell (born August 14, 1952) is an American academic, educator and former politician.  He is Professor of Law at the Dale E. Fowler School of Law, and a Professor of Economics at the George Argyros School of Business and Economics, at Chapman University, in Orange, California.  He was Dean of Chapman University School of Law from 2011-16, a former five-term Republican United States Congressman from California's 12th and 15th districts, former member of the California State Senate, a former professor at Stanford Law School, former dean of the Haas School of Business, and former professor of business administration at the University of California, Berkeley.  In 2000 he retired from his House seat to run for the U.S. Senate but lost decisively to incumbent Dianne Feinstein.  He served as the Director of Finance for the State of California from 2004 to 2005.  On June 8, 2010, he lost his third bid for the United States Senate, and second for the seat held by Democrat Barbara Boxer, losing the Republican nomination to Carly Fiorina.
[PAR] [TLE] Dianne Feinstein [ SEP ] Dianne Goldman Berman Feinstein ( ; born Dianne Emiel Goldman ; June 22 , 1933 ) is the senior United States Senator from California . A member of the Democratic Party , she has served in the Senate since 1992 . She also served as the 38th Mayor of San Francisco from 1978 to 1988 . [PAR] [TLE] Tom Campbell ( California politician ) [ SEP ] Thomas John Campbell ( born August 14 , 1952 ) is an American academic , educator and former politician . He is Professor of Law at the Dale E. Fowler School of Law , and a Professor of Economics at the George Argyros School of Business and Economics , at Chapman University , in Orange , California . He was Dean of Chapman University School of Law from 2011 - 16 , a former five - term Republican United States Congressman from California 's 12th and 15th districts , former member of the California State Senate , a former professor at Stanford Law School , former dean of the Haas School of Business , and former professor of business administration at the University of California , Berkeley . In 2000 he retired from his House seat to run for the U.S. Senate but lost decisively to incumbent Dianne Feinstein . He served as the Director of Finance for the State of California from 2004 to 2005 . On June 8 , 2010 , he lost his third bid for the United States Senate , and second for the seat held by Democrat Barbara Boxer , losing the Republican nomination to Carly Fiorina .
In 2000, Tom Campbell lost his Senate race to an incumbent who has served since what year?
In 2000 , Tom Campbell lost his Senate race to an incumbent who has served since what year ?
1992
1992