Campbell is primarily recognized for his extensive political career, yet he also occupied several other distinguished positions, including service in the U.S. Air Force and membership on the U.S. Olympic Team.
Campbell served in the Colorado state legislature from 1983 to 1986, subsequently completing three terms in the U.S. House of Representatives. Subsequently, he was elected to the U.S. Senate in 1992, where he changed his party affiliation from Democrat to Republican in 1995.