New York's 34th State Senate district is one of 63 districts in the New York State Senate. It has been represented by Democrat Alessandra Biaggi since 2019. Biaggi ran in 2018 for the Democratic nomination for New York State Senate in District 34. While only 32 years old, she ran against powerful longtime incumbent Jeffrey D. Klein, the number 2 Democrat in the NY Senate and the leader of the Independent Democratic Conference, who had held the seat for 14 years. Klein outspent Biaggi by a rate of 9-to-1, spending $2 million to her $200,000. Biaggi said: "The more people told me I couldn’t win, the more obsessed I became."