The New York State Senate is the upper house of the New York State Legislature, while the New York State Assembly is its lower house. Established in 1777 by the Constitution of New York, its members are elected to two-year terms with no term limits. There are 63 seats in the Senate. The Democratic Party has held control of the New York State Senate since 2019. The Senate Majority Leader is Andrea Stewart-Cousins.

Rubén Díaz is a Puerto Rican politician from New York City and an ordained Pentecostal minister. He represented the 18th district of the New York City Council from 2018 to 2021. A member of the Democratic Party, Díaz represented the 32nd district in the New York State Senate from 2003 to 2017; his Senate district included parts of the Bronx neighborhoods of Castle Hill, Parkchester, Morrisania, Hunts Point, Melrose, Longwood, and Soundview.