In 1948, Nelson was elected to the
Wisconsin Senate. He remained there until
1958, when he was elected governor of Wisconsin. He served for four years as governor, in two two-year terms, before being elected to the
United States Senate in
1962. He served three consecutive terms as a senator from 1963 to 1981. In 1963, he convinced President
John F. Kennedy to take a national speaking tour to discuss conservation issues. Senator Nelson founded
Earth Day, which began as a teach-in about environmental issues on April 22, 1970. During Congressional debate on air pollution and emissions from automobiles in 1970, Nelson also sponsored an amendment to the
Clean Air Act which would have phased out gasoline-powered automobiles in favor of electric or steam-powered vehicles. The bill was defeated due to lobbying from automotive manufacturers. During his
1968 re-election campaign, Nelson was praised by
Vince Lombardi, the General Manager and former coach of the
Green Bay Packers, as the "nation's #1 conservationist" at a banquet in
Oshkosh. Nelson's campaign turned Lombardi's banquet speech into a radio and television campaign commercial, infuriating Lombardi, the
Wisconsin Republican Party, and Vince's wife, Marie, who was a staunch Republican. Although known primarily for his environmental work, Nelson also was a leading consumer advocate, strong supporter of civil rights and civil liberties, and one of the early outspoken opponents of the
Vietnam War. In 1969, Nelson was one of four senators to
introduce a bill to establish the Wisconsin Islands Wilderness. In 1970, Nelson called for Congressional hearings on the safety of
combined oral contraceptive pills, which were famously called "The
Nelson Pill Hearings." As a result of the hearings, side-effect disclosure in patient inserts was required for the pillthe first such disclosure for a pharmaceutical drug. Nelson further attempted to overhaul how
pharmaceuticals were marketed, proposing a bill that would require
drug manufacturers to prove both the safety and efficacy of their marketed drugs in 1971. His office received a memorandum in 1975 stating that both
Sominex and its competitor
Compoz had been shown ineffective when compared to
placebos, in spite of the US$34 million spent on
sleeping aids in 1974. Nelson was also a noted advocate of small business. While chairman of the Senate Small Business Committee, he led successful efforts to authorize the first modern White House Conference on Small Business, create the system of Small Business Development Centers at U.S. universities, and improve the way that federal agencies regulate small businesses and other small entities, the
Regulatory Flexibility Act. In 1973, Nelson was one of the three senators who opposed the nomination of
Gerald Ford to be
Vice President (the other two being
Thomas Eagleton and
William Hathaway). ==Environmentalism==