Question: In 2000, Tom Campbell lost his Senate race to an incumbent who has served since what year?
Sentence (from "Tom Campbell (California politician)"): 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.
Relevant evidence: No