Bill de Blasio is an American politician who was the 109th mayor of New York City from 2014 to 2021. A member of the Democratic Party, he held the office of New York City Public Advocate from 2010 to 2013.

Pre-kindergarten is a voluntary classroom-based preschool program for children below the age of five in the United States, Canada, Turkey and Greece. It may be delivered through a preschool or within a reception year in elementary school. Pre-kindergartens play an important role in early childhood education. They have existed in the US since 1922, normally run by private organizations. The U.S. Head Start program, the country's first federally funded pre-kindergarten program, was founded in 1967. This attempts to prepare children to succeed in school.