Robert F. Wagner was an influential American politician and a member of the Democratic Party. He served as the Mayor of New York City from 1954 to 1965, during which he focused on urban development and social welfare programs. His leadership helped shape the city's post-war growth and improve living conditions for many residents. Wagner was also known for his role in the U.S. Senate, where he advocated for labor rights and civil rights. He played a significant part in the passage of important legislation, including the Wagner Act, which strengthened workers' rights to unionize and bargain collectively.