The 2018 New York State Senate elections were held on November 6, 2018, to elect representatives from all 63 State Senate districts in the U.S. state of New York. Primary elections were held on September 13, 2018.
In April 2018, The Wall Street Journal described the State Senate as the "last bastion of power" of the Republican Party in the State of New York. The coalition of Republicans and members of the Independent Democratic Conference collapsed in 2018, with 7 of the 8 IDC members returning to the Democratic Caucus. Democrat Simcha Felder, however, continued to caucus with the Republicans, giving them control of the chamber with only 31 seats. On Election Day, Democrats gained control of the chamber from the Republicans by picking up eight seats.
The following day, The New York Times wrote that the Democrats had "decisively evict[ed] Republicans from running the State Senate, which they [had] controlled for all but three years since World War II". Enrolled Democrats won 40 of the chamber's 63 seats, including all but one seat in New York City and six of the nine seats on Long Island, the latter of which had been under total Republican control since the early 1970s. Brooklyn Senator Simcha Felder, a Democrat who had previously caucused with the Republicans, sought to rejoin the Senate Democratic Conference, but was turned down in December 2018; he was later accepted into the Conference on July 1, 2019.
The Democrats' election victories made possible the January 2019 election of Andrea Stewart-Cousins as the first female Majority Leader and Temporary President in the chamber's history.
Party composition
The vote totals for each party were:
Summary of results
Sources:
Retiring incumbents
Five incumbent Republican senators did not seek re-election in 2018. They were: Thomas Croci (R), District 3 William J. Larkin Jr. (R), District 39 John Bonacic (R), District 42 Kathy Marchione (R), District 43 John A. DeFrancisco (R), District 50
Incumbents defeated
In primary
Seven incumbent Senators (all Democrats) ran for re-election, but were defeated in the September 13 primaries. They were:
Tony Avella (D-District 11) Jose Peralta (D-District 13) Martin Malave Dilan (D-District 18) Jesse Hamilton (D-District 20) Marisol Alcantara (D-District 31) Jeffrey D. Klein (D-District 34) David Valesky (D-District 53)
With the exception of Sen. Dilan, all seven had been members of the Independent Democratic Conference.
In general election
The following Republican incumbents were defeated on Election Day:
Carl L. Marcellino (R-District 5) Kemp Hannon (R-District 6) Elaine Phillips (R-District 7) Martin Golden (R-District 22) Terrence Murphy (R-District 40)
The six Democratic members of the IDC who were defeated in the September primaries (Sens. Avella, Peralta, Hamilton, Alcantara, Klein, and Valesky) were also on the ballot in November on either the Independence Party line, the Women's Equality Party line, or both (Sen. Peralta also received votes on the Reform Party line). None of the six was re-elected.
Detailed results
The New York State Board of Elections only publishes results for contested primary elections.
Sources:
District 1
District 2
District 3
The 3rd district is located on Long Island and includes Medford, Ronkonkoma, and Sayville. Republican Thomas Croci has represented this district since 2015. Croci did not run for reelection.
District 4
District 5
District 6
In an unexpected upset, Democratic challenger Kevin Thomas defeated Republican incumbent Kemp Hannon.
District 7
District 8
District 9
Democrat Todd Kaminsky was first elected in a 2016 special election.