In 1953, Tucker won the Democratic nomination for mayor in a
primary election against Mark D. Eagleton, and was elected in April 1953. During his first term the Earnings Tax was made a permanent part of the City's financial system. A $1,500,000 Plaza Bond Issue was passed in September 1953 and, in May 1955, a $110,000,000 Bond Issue, to support over twenty types of city improvements, was also passed. The City's water supply underwent
fluoridation in September 1955. Tucker supported the adoption of the plan for the Metropolitan Sewer District in 1954. In his first term, Tucker established the Industrial and Commercial Development Commission and worked closely with Civic Progress, an insiders club of business leaders, to envision
urban renewal projects. Tucker proposed a major plan with funding from the 1949 Housing Act, a local bond line passed in 1955, and private capital investments. Key to the plan was the destruction of
Mill Creek Valley and
Kosciusko neighborhoods for planned industrial zones. Tucker ran for re-election successfully in 1957. He backed the proposed City Charter that was defeated August 6, 1957. The increase in the Earnings Tax from one-half percent to one percent became effective August 1, 1959. He opposed the Metropolitan District Plan of 1959 and the Borough Plan of 1962; each would have restructured the relationship between St. Louis City and St. Louis County. He became president of the American Municipal Association (now the
National League of Cities) in 1959 and headed the
United States Conference of Mayors from December 1963 to April 20, 1965. The City Charter was amended in August 1960 to raise the City salary limit from $10,000 to $25,000. In 1956, the mayor had appointed a committee of building industry people to draw up a new Building Code, which he signed into law on March 31, 1961. In April 1961, Tucker was elected to a third term as mayor. Significant civil rights legislation was passed in the City during this time, including the Public Accommodations Ordinance in 1961 and Fair Employment legislation in 1963. In March 1965, during his bid for an unprecedented fourth term as mayor, Tucker lost to
Alfonso J. Cervantes in the Democratic primary. A 1993 survey of historians, political scientists and urban experts conducted by Melvin G. Holli of the
University of Illinois at Chicago ranked Tucker as the thirteenth-best American big-city mayor to have served between the years 1820 and 1993. == Later life ==