# 2018 United States House of Representatives elections in New York

"none" is preferred when the title is already sufficiently detailed; see [[WP:SDNONE]]
Elections in New York State :
Federal government
Presidential elections
1792
1796
1800
1804
1808
1812
1816
1820
1824
1828
1832
1836
1840
1844
1848
1852
1856
1860
1864
1868
1872
1876
1880
1884
1888
1892
1896
1900
1904
1908
1912
1916
1920
1924
1928
1932
1936
1940
1944
1948
1952
1956
1960
1964
1968
1972
1976
1980
1984
1988
1992
1996
2000
Dem
2004
Dem
2008
Dem
GOP
2012
2016
Dem
GOP
2020
Dem
2024
Dem
GOP
U.S. Senate
1789
1791
1795
1796 sp
1797
Jan 1798 sp
Aug 1798 sp
Apr 1800 sp
Nov 1800 sp
1801
1802 sp
1803
Feb 1804 sp
Nov 1804 sp
1807
1809
1813
1815
1819–20
1821
1825–26
1827
1829 sp
1831
1833
1833 sp
1837
1839–40
1843
1845 sp
1849
1851
1855
1857
1861
1863
1867
1869
1873
1875
1879
1881
1881 sp
1885
1887
1891
1893
1897
1899
1903
1905
1909
1911
1914
1916
1920
1922
1926
1928
1932
1934
1938
1938 sp
1940
1944
1946
1949 sp
1950
1952
1956
1958
1962
1964
1968
1970
1974
1976
1980
1982
1986
1988
1992
1994
1998
2000
2004
2006
2010
2010 sp
2012
2016
2018
2022
2024
U.S. House
1789
1790
1791
1st sp
1793
1794
1796
1798
1799
1st sp
1800
1801
5th sp
1801
6th sp
1802
1803
6th sp
1803
7th sp
1804
1st sp
2nd and 3rd sp
1805
2nd and 3rd sp
1806
1808
12th sp
1810
2nd sp
1812
6th sp
1813
15th sp
1813
2nd sp
1814
1815
6th sp
1815
12th sp
1816
20th sp
21st sp
1817
4th sp
1818
1821
6th sp
1821
9th sp
1822
1823
28th sp
1824
1826
1827
29th sp
1828
5th sp
1830
6th sp
20th sp
1832
1834
1836
17th sp
30th sp
1838
1840
1841
26th May sp
26th Nov sp
1842
1844
1846
12th sp
1848
1850
1852
1854
12th sp
1856
1858
1859
4th sp
1860
31st sp
1862
1863
14th sp
1864
1866
1868
1870
1872
1874
1876
1878
1879
12th sp
1880
32nd sp
1881
9th sp
11th sp
22nd sp
1881
27th sp
1882
1884
1885
8th sp
1886
15th sp
1888
1889
6th sp
9th sp
27th sp
1890
1891
2nd sp
10th sp
1891
12th sp
22nd sp
1892
1894
14th sp
15th sp
1895
10th sp
1896
1897
3rd sp
1898
1899
34th sp
1900
1902
26th sp
1904
12th sp
1906
8th sp
1908
3rd sp
1910
1912
26th sp
1913
13th sp
20th sp
1914
1915
31st sp
1916
1917
15th sp
1918
7th sp
8th sp
21st sp
22nd sp
1920
14th sp
26th sp
1922
1923
11th sp
16th sp
19th sp
24th sp
32nd sp
1924
1926
1927
35th sp
1928
32nd sp
1929
21st sp
1930
18th sp
1931
7th sp
9th sp
1932
1933
34th sp
1934
1935
2nd sp
22nd sp
1936
1937
27th sp
17th sp
25th sp
1938
1939
34th sp
1940
14th sp
22nd sp
31st sp
1941
14th sp
17th sp
1942
1944
4th sp
11th sp
21st sp
1946
19th sp
1947
14th sp
1948
24th sp
1949
7th sp
10th sp
20th sp
1950
1952
5th sp
32nd sp
1954
1956
22nd sp
1958
1959
43rd sp
1960
23rd sp
1962
6th sp
1964
1966
17th sp
1968
13th sp
1970
1972
1974
1976
1978
18th sp
21st sp
1980
1982
1983
7th sp
1984
1986
6th sp
1988
1990
14th sp
18th sp
1992
17th sp
1994
1996
1997
13th sp
1998
6th sp
2000
2002
2004
2006
2008
2009
20th sp
23rd sp
2010
29th sp
2011
9th sp
26th sp
2012
2014
2015
11th sp
2016
2018
14th
25th sp
2020
22nd
27th sp
2022
19th sp
23rd sp
2024
3rd sp
26th sp
2025
21st sp :
State government
New York gubernatorial elections
1777
1780
1783
1786
1789
1792
1795
1798
1801
1804
1807
1810
1813
1816
1817
1820
1822
1824
1826
1828
1830
1832
1834
1836
1838
1840
1842
1844
1846
1848
1850
1852
1854
1856
1858
1860
1862
1864
1866
1868
1870
1872
1874
1876
1879
1882
1885
1888
1891
1894
1896
1898
1900
1902
1904
1906
1908
1910
1912
1914
1916
1918
1920
1922
1924
1926
1928
1930
1932
1934
1936
1938
1942
1946
1950
1954
1958
1962
1966
1970
1974
1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
Attorney General elections
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
State Comptroller elections
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
State Senate elections
2008
2010
2012
2014
2016
2018
2020
2022
2024
State Assembly elections
99th district, 2006
2008
2016
2018
2020
2022
2024
State elections by year
1811-LtGSE
1844
1846
1847-JSE
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1870–JSE
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1900
1902
1903
1904
1906
1907
1908
1910
1912
1913
1914
1916
1917
1918
1919
1920
1921
1922
1923
1924
1926
1927
1928
1930
1932
1933
1934
1936
1937
1938
1939
1940
1942
1943
1944
1946
1949
1950
1952
1953
1954
1956
1958
1959
1960
1962
1963
1964
1965
1966
1967
1968
1969
1970
1972
1973
1974
2002
2006
2008
2009
2010
2012
2016
2018
2020
2021
2022
2024 :
New York City
Mayoral elections
Pre-consolidation:
1850
1854
1856
1857
1859
1861
1886
1888
1890
1892
1894
Post-consolidation:
1897
1901
1903
1905
1909
1913
1917
1921
1925
1929
1932
1933
1937
1941
1945
1950
1953
1957
1961
1965
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2021
2025
City Council elections
Pre-consolidation:
1808
Post-consolidation:
1897
1899
1901
1903
1905
1907
1909
1911
1913
1915
1917
1919
1921
1923
1925
1927
1929
1931
1933
1935
1937
1939
1941
1943
1945
1949
1953
1957
1961
1965
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2021
2023
2025
Public Advocate elections
1897
1901
1905
1909
1913
1917
1921
1925
1929
1933
1937
1941
1945
1949
1953
1957
1961
1965
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2019 (special)
2019
2021
2025
Comptroller elections
1897
1901
1905
1909
1913
1917
1921
1925
1929
1933
1937
1941
1945
1949
1953
1957
1961
1965
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2021
2025
Borough president elections
1897
1901
1905
1909
1913
1917
1921
1925
1929
1933
1937
1941
1945
1949
1953
1957
1961
1965
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2021
2025
The Bronx
Brooklyn
Manhattan
Queens
Staten Island :
Albany
Mayoral elections
2005
2009
2013
2017
2021 :
Buffalo
Mayoral elections
1881
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2021
2025 :
Rochester
Mayoral elections
1997
2001
2005
2009
2011 sp
2013
2017
2021 :
Syracuse
Mayoral elections
2009
2013
2017
2021
2025 :
vte :
The 2018 United States House of Representatives elections in New York were held November 6, 2018 to elect a U.S. Representative from each of New York's 27 congressional districts. The elections coincided with the gubernatorial election, as well as an election to the United States Senate and various state and local elections.
Contested primaries were held June 26, 2018. On election day, Democrats gained three New York House seats, and the Democratic Party retook control of the House of Representatives. Democrats won a total of 21 New York House seats, while Republicans won six.

## Overview

Elections were held in all 27 of New York's congressional districts in 2018. Prior to the 2018 elections, one New York House seat was vacant due to the death of Rep. Louise Slaughter (D-25th District) on March 16, 2018. In the June 26, 2018 Democratic primary in District 14, insurgent Alexandria Ocasio-Cortez upset longtime incumbent Rep. Joe Crowley. On November 6, 2018, the Democratic Party held the open seat in District 25 and defeated three Republican incumbents; with the exception of Crowley, all Democratic incumbent members of Congress in New York were re-elected. The defeated Republican incumbents were Rep. Dan Donovan (R-11th District) (defeated by Democrat Max Rose), Rep. John Faso (R-19th District) (defeated by Democrat Antonio Delgado), and Rep. Claudia Tenney (R-22nd District) (defeated by Democrat Anthony Brindisi). Incumbent Rep. Chris Collins (R-27th District) was narrowly re-elected despite having been arrested on insider trading charges in August 2018.
Democrats won a total of 21 New York House seats, while Republicans won six. Nationally, the Democratic Party won control of the House of Representatives on election day.
New York is near unique among the states in that it allows electoral fusion (cross-endorsement). As a result, New York ballots tend to list many political parties. Most news outlets report election results using only the primary affiliation of party registration of candidates rather than by the party nominees who are elected, and most pollsters group candidates the same way.
United States House of Representatives elections in New York, 2018 :
| Party | Party | Votes | Percentage | Seats | +/– |
| | Democratic | 3,760,566 | 63.30% | 21 | +3 |
| | Republican | 1,639,593 | 27.60% | 6 | –3 |
| | Conservative | 207,094 | 3.49% | 0 | |
| | Working Families | 176,483 | 2.97% | 0 | |
| | Reform | 44,931 | 0.76% | 0 | |
| | Independence | 44,722 | 0.75% | 0 | |
| | Women's Equality | 41,317 | 0.70% | 0 | |
| | Independent | 2,835 | 0.05% | 0 | |
| Totals | Totals | 5,917,541 | 100.00% | 27 | |
Popular vote
Democratic
63.30%
Republican
27.60%
Other
9.10% :
House seats by party nomination
Democratic
77.78%
Working Families
66.67%
Women's Equality
40.74%
Independence
37.04%
Reform
29.63%
Conservative
22.22%
Republican
22.22% :
House seats by party registration
Democratic
77.78%
Republican
22.22% :

### By district

Results of the 2018 United States House of Representatives elections in New York by district:
| District | Democratic | Democratic | Republican | Republican | Others | Others | Total | Result |
| District | Votes | % | Votes | % | Votes | % | Votes | Result |
| District 1 | 127,991 | 47.40% | 139,027 | 51.49% | 2,988 | 1.11% | 270,006 | Republican hold |
| District 2 | 113,074 | 46.89% | 128,078 | 53.11% | 0 | 0.00% | 241,152 | Republican hold |
| District 3 | 157,456 | 58.98% | 109,514 | 41.02% | 0 | 0.00% | 266,970 | Democratic hold |
| District 4 | 159,535 | 61.33% | 100,571 | 38.67% | 0 | 0.00% | 260,106 | Democratic hold |
| District 5 | 160,500 | 100.00% | 0 | 0.00% | 0 | 0.00% | 160,500 | Democratic hold |
| District 6 | 111,646 | 90.88% | 0 | 0.00% | 11,209 | 9.12% | 122,855 | Democratic hold |
| District 7 | 146,687 | 93.37% | 0 | 0.00% | 10,410 | 6.63% | 157,097 | Democratic hold |
| District 8 | 180,376 | 94.24% | 0 | 0.00% | 11,028 | 5.76% | 263,307 | Democratic hold |
| District 9 | 181,455 | 89.33% | 20,901 | 10.29% | 779 | 0.38% | 203,135 | Democratic hold |
| District 10 | 173,095 | 82.15% | 37,619 | 17.85% | 0 | 0.00% | 210,714 | Democratic hold |
| District 11 | 101,823 | 53.02% | 89,441 | 46.58% | 774 | 0.40% | 192,038 | Democratic gain |
| District 12 | 217,430 | 86.42% | 30,446 | 12.10% | 3,728 | 1.48% | 251,604 | Democratic hold |
| District 13 | 180,035 | 94.60% | 10,268 | 5.40% | 0 | 0.00% | 190,303 | Democratic hold |
| District 14 | 110,318 | 78.17% | 19,202 | 13.61% | 11,602 | 8.22% | 141,122 | Democratic hold |
| District 15 | 124,469 | 95.99% | 5,205 | 4.01% | 0 | 0.00% | 129,674 | Democratic hold |
| District 16 | 182,044 | 100.00% | 0 | 0.00% | 0 | 0.00% | 182,044 | Democratic hold |
| District 17 | 170,168 | 88.02% | 0 | 0.00% | 23,150 | 11.98% | 193,318 | Democratic hold |
| District 18 | 139,564 | 55.47% | 112,035 | 44.53% | 0 | 0.00% | 251,599 | Democratic hold |
| District 19 | 147,873 | 51.37% | 132,873 | 46.15% | 7,148 | 2.48% | 287,894 | Democratic gain |
| District 20 | 176,811 | 66.50% | 89,058 | 33.50% | 0 | 0.00% | 265,869 | Democratic hold |
| District 21 | 99,791 | 42.43% | 131,981 | 56.11% | 3,437 | 1.46% | 235,209 | Republican hold |
| District 22 | 127,715 | 50.89% | 123,242 | 49.11% | 0 | 0.00% | 250,957 | Democratic gain |
| District 23 | 109,932 | 45.76% | 130,323 | 54.24% | 0 | 0.00% | 279,327 | Republican hold |
| District 24 | 123,226 | 47.37% | 136,920 | 52.63% | 0 | 0.00% | 260,146 | Republican hold |
| District 25 | 159,244 | 58.98% | 110,736 | 41.02% | 0 | 0.00% | 269,980 | Democratic hold |
| District 26 | 169,166 | 73.34% | 61,488 | 26.66% | 0 | 0.00% | 230,654 | Democratic hold |
| District 27 | 139,059 | 48.76% | 140,146 | 49.14% | 5,973 | 2.10% | 285,178 | Republican hold |
| Total | 3,990,483 | 65.93% | 1,859,074 | 30.72% | 92,226 | 1.52% | 6,052,758 | |

## District 1

The 1st district is located in eastern Long Island and includes most of central and eastern Suffolk County. The incumbent was Republican Lee Zeldin, who had represented the district since 2015. He was re-elected to a second term with 58% of the vote in 2016.

### Republican primary
#### Candidates
##### Nominee

* Lee Zeldin, incumbent U.S. Representative

### Democratic primary

The 1st district was included on the initial list of Republican-held seats being targeted by the Democratic Congressional Campaign Committee in 2018.

#### Candidates
##### Nominee

* Perry Gershon, businessman

##### Eliminated in primary

* Kate Browning, Suffolk County legislator
* Elaine DiMasi, physicist
* David Pechefsky, New York City Council staffer
* Vivian Viloria-Fisher, former Suffolk County legislator and candidate for Brookhaven Town Supervisor in 2013

##### Withdrawn

* Brendon Henry, bartender
* Hannah Selinger, writer and sommelier

##### Declined

* Dave Calone, venture capitalist, former chairman of the Suffolk Planning Commission and candidate in 2016
* Fred Thiele, state assembly member

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Perry Gershon | 7,902 | 35.5 |
| | Democratic | Kate Browning | 6,813 | 30.6 |
| | Democratic | Vivian Viloria-Fisher | 3,616 | 16.3 |
| | Democratic | David Pechefsky | 2,565 | 11.5 |
| | Democratic | Elaine DiMasi | 1,344 | 6.0 |
| Total votes | Total votes | Total votes | 22,240 | 100.0 |

### General election
#### Campaign

In mid-September, Gershon said his campaign had raised more than $1.25 million since July 1, with contributions averaging $85. At the end of September, the nonpartisan Washington, D.C.-based Cook Political Report rated the race as "Likely Republican;" the "Likely" designation is for seats "not considered competitive at this point, but hav[ing] the potential to become engaged."

#### Endorsements

U.S. Executive Branch officials
* Donald Trump, President of the United States
Labor unions
* Transport Workers Union of America Local 252
Organizations
* NRA Political Victory Fund
Newspapers
* The New York Post
Labor unions
* New York State United Teachers
* SEIU 32BJ
Organizations
* Giffords
* Human Rights Campaign
Newspapers
* The New York Times
* Newsday

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Lee Zeldin (R) | Perry Gershon (D) | Undecided |
| Change Research (D) | October 27–29, 2018 | 838 | – | 52% | 37% | – |
| GBA Strategies (D-Gershon) | October 8–10, 2018 | 500 | ± 4.4% | 50% | 46% | – |
| NYT Upshot/Siena College | October 4–8, 2018 | 502 | ± 4.6% | 49% | 41% | 10% |
| Global Strategy Group (D) | September 11–17, 2018 | 400 | ± 4.9% | 47% | 44% | – |

#### Results

New York's 1st congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Lee Zeldin | 121,562 | 45.0 |
| | Conservative | Lee Zeldin | 14,284 | 5.3 |
| | Independence | Lee Zeldin | 2,693 | 1.0 |
| | Reform | Lee Zeldin | 488 | 0.2 |
| | Total | Lee Zeldin (incumbent) | 139,027 | 51.5 |
| | Democratic | Perry Gershon | 124,213 | 46.0 |
| | Working Families | Perry Gershon | 3,778 | 1.4 |
| | Total | Perry Gershon | 127,991 | 47.4 |
| | Women's Equality | Kate Browning | 2,988 | 1.1 |
| Total votes | Total votes | Total votes | 270,006 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 2

The 2nd district is based along the South Shore of Long Island and includes southwestern Suffolk County and a small portion of southeastern Nassau County. The incumbent was Republican Peter T. King, who had represented the district since 2013 and previously represented the 3rd district from 1993 to 2013. He was re-elected to a thirteenth term with 62% of the vote in 2016.

### Republican primary
#### Candidates
##### Nominee

* Peter T. King, incumbent U.S. Representative

### Democratic primary
#### Candidates
##### Nominee

* Liuba Grechen Shirley, teacher

##### Eliminated in primary

* DuWayne Gregory, Suffolk County legislator

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Liuba Grechen Shirley | 7,315 | 57.3 |
| | Democratic | DuWayne Gregory | 5,456 | 42.7 |
| Total votes | Total votes | Total votes | 12,771 | 100.0 |

### General election
#### Endorsements

U.S. Executive Branch officials
* Donald Trump, President of the United States
Organizations
* Humane Society of the United States
Newspapers
* The New York Post
* Newsday
U.S. Representatives
* Kathleen Rice, U.S. Representative from NY-04
State officials
* Andrew Cuomo, Governor of New York
Labor unions
* New York State United Teachers
* SEIU 32BJ
Organizations
* EMILY's List
* Indivisble
Newspapers
* The New York Times

#### Debate

2018 New York's 2nd congressional district debate :
| No. | Date | Host | Moderator | Link | Republican | Democratic |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Peter King | Liuba Grechen Shirley |
| 1 | Oct. 18, 2018 | WRNN-TV | Richard French | | P | P |

#### Results

New York's 2nd congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Peter T. King | 112,565 | 46.7 |
| | Conservative | Peter T. King | 12,504 | 5.2 |
| | Independence | Peter T. King | 2,535 | 1.0 |
| | Reform | Peter T. King | 474 | 0.2 |
| | Total | Peter T. King (incumbent) | 128,078 | 53.1 |
| | Democratic | Liuba Grechen Shirley | 108,803 | 45.1 |
| | Working Families | Liuba Grechen Shirley | 2,799 | 1.2 |
| | Women's Equality | Liuba Grechen Shirley | 1,472 | 0.6 |
| | Total | Liuba Grechen Shirley | 113,074 | 46.9 |
| Total votes | Total votes | Total votes | 241,152 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 3

The 3rd district includes most of the North Shore of Long Island. It covers northwestern Suffolk County, northern Nassau County, and northeastern Queens. The incumbent was Democrat Tom Suozzi, who had represented the district since 2017. He was elected to replace retiring representative Steve Israel with 53% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Tom Suozzi, incumbent U.S. Representative

### Republican primary

New York's 3rd district was included on the initial list of Democrat-held seats being targeted by the National Republican Congressional Committee in 2018.

#### Candidates
##### Nominee

* Dan DeBono, investment banker

### Independents

* Joshua Sauberman, policy analyst

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers
Organizations
* New York League of Conservation Voters
Newspapers
* Newsday
U.S. Representatives
* Peter T. King, U.S. Representative from NY-02
* Lee Zeldin, U.S. Representative from NY-01
Organizations
* Queens County Conservative Party
Individuals
* Roger Stone, political consultant

#### Results

New York's 3rd congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Suozzi | 149,937 | 56.2 |
| | Independence | Tom Suozzi | 2,962 | 1.1 |
| | Working Families | Tom Suozzi | 2,838 | 1.1 |
| | Women's Equality | Tom Suozzi | 1,376 | 0.5 |
| | Reform | Tom Suozzi | 343 | 0.1 |
| | Total | Tom Suozzi (incumbent) | 157,456 | 59.0 |
| | Republican | Dan DeBono | 98,716 | 37.0 |
| | Conservative | Dan DeBono | 10,798 | 4.0 |
| | Total | Dan DeBono | 109,514 | 41.0 |
| Total votes | Total votes | Total votes | 266,970 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 4

The 4th district is located in central and southern Nassau County. The incumbent was Democrat Kathleen Rice, who had represented the district since 2015. She was re-elected to a second term with 59.5% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Kathleen Rice, incumbent U.S. Representative

### Republican primary
#### Candidates
##### Nominee

* Ameer Benno, attorney

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 4th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Kathleen Rice | 156,728 | 60.2 |
| | Women's Equality | Kathleen Rice | 2,807 | 1.1 |
| | Total | Kathleen Rice (incumbent) | 159,535 | 61.3 |
| | Republican | Ameer Benno | 90,306 | 34.7 |
| | Conservative | Ameer Benno | 9,709 | 3.7 |
| | Reform | Ameer Benno | 556 | 0.2 |
| | Total | Ameer Benno | 100,571 | 38.7 |
| Total votes | Total votes | Total votes | 260,106 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 5

The 5th district is mostly located within Queens in New York City, but also includes a small portion of Nassau County. The incumbent was Democrat Gregory Meeks, who had represented the district since 2013 and previously represented the 6th district from 1998 to 2013. He was re-elected to a tenth term with 85% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Gregory Meeks, incumbent U.S. Representative

##### Eliminated in primary

* Carl Achille, former vice president of the Elmont Chamber of Commerce
* Mizan Choudhury, IT operations manager

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gregory Meeks (incumbent) | 11,060 | 81.6 |
| | Democratic | Carl Achille | 1,288 | 9.5 |
| | Democratic | Mizan Choudhury | 1,200 | 8.9 |
| Total votes | Total votes | Total votes | 13,548 | 100.0 |

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 5th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gregory Meeks (incumbent) | 160,500 | 100.0 |
| Total votes | Total votes | Total votes | 160,500 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 6

The 6th district is located entirely within Queens in New York City. The incumbent was Democrat Grace Meng, who had represented the district since 2013. She was re-elected to a third term with 72% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Grace Meng, incumbent U.S. Representative

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 6th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Grace Meng | 104,293 | 84.9 |
| | Working Families | Grace Meng | 6,429 | 5.2 |
| | Reform | Grace Meng | 924 | 0.8 |
| | Total | Grace Meng (incumbent) | 111,646 | 90.9 |
| | Green | Thomas Hillgardner | 11,209 | 9.1 |
| Total votes | Total votes | Total votes | 122,855 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 7

The 7th district is located entirely in New York City and includes parts of Brooklyn, Queens, and Manhattan. The incumbent was Democrat Nydia Velázquez, who had represented the district since 2013 and previously represented the 12th district from 1993 to 2013. She was re-elected to a thirteenth term with 91% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Nydia Velázquez, incumbent U.S. Representative

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 7th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nydia Velázquez | 134,125 | 85.4 |
| | Working Families | Nydia Velázquez | 12,562 | 8.0 |
| | Total | Nydia Velázquez (incumbent) | 146,687 | 93.4 |
| | Conservative | Joseph Lieberman | 8,670 | 5.5 |
| | Reform | Jeffrey Kurzon | 1,740 | 1.1 |
| Total votes | Total votes | Total votes | 157,097 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 8

The 8th district is located entirely in the New York City boroughs of Brooklyn and Queens. The incumbent was Democrat Hakeem Jeffries, who had represented the district since 2013. He was re-elected to a third term with 93% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Hakeem Jeffries, incumbent U.S. Representative

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 8th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Hakeem Jeffries | 170,850 | 89.3 |
| | Working Families | Hakeem Jeffries | 9,526 | 5.0 |
| | Total | Hakeem Jeffries (incumbent) | 180,376 | 94.3 |
| | Conservative | Ernest Johnson | 9,997 | 5.2 |
| | Reform | Jessica White | 1,031 | 0.5 |
| Total votes | Total votes | Total votes | 191,404 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 9

The 9th district is located entirely within the New York City borough of Brooklyn. The incumbent was Democrat Yvette Clarke, who had represented the district since 2013 and previously represented the 11th district from 2007 to 2013. She was re-elected to a sixth term with 92% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Yvette Clarke, incumbent U.S. Representative

##### Eliminated in primary

* Adem Bunkeddeko, former member of Brooklyn Community Board 8

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Yvette Clarke (incumbent) | 16,202 | 53.0 |
| | Democratic | Adem Bunkeddeko | 14,350 | 47.0 |
| Total votes | Total votes | Total votes | 30,552 | 100.0 |

### Republican primary
#### Candidates
##### Nominee

* Lutchi Gayot, businessman

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 9th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Yvette Clarke | 167,269 | 82.3 |
| | Working Families | Yvette Clarke | 14,186 | 7.0 |
| | Total | Yvette Clarke (incumbent) | 181,455 | 89.3 |
| | Republican | Lutchi Gayot | 18,702 | 9.2 |
| | Conservative | Lutchi Gayot | 2,199 | 1.1 |
| | Total | Lutchi Gayot | 20,901 | 10.3 |
| | Reform | Joel Anabilah-Azumah | 779 | 0.4 |
| Total votes | Total votes | Total votes | 203,135 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 10

The 10th district is located in New York City and includes the Upper West Side of Manhattan; the west side of Lower Manhattan, including Greenwich Village and the Financial District; and parts of Brooklyn, including Borough Park. The incumbent was Democrat Jerrold Nadler, who had represented the district since 2013, and previously represented the 8th district from 1993 to 2013 and the 17th district from 1992 to 1993. He was re-elected to a thirteenth full term with 78% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Jerrold Nadler, incumbent U.S. Representative

### Republican primary
#### Candidates
##### Nominee

* Naomi Levin, software engineer

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 10th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jerrold Nadler | 162,131 | 76.9 |
| | Working Families | Jerrold Nadler | 10,964 | 5.2 |
| | Total | Jerrold Nadler (incumbent) | 173,095 | 82.1 |
| | Republican | Naomi Levin | 33,692 | 16.0 |
| | Conservative | Naomi Levin | 3,259 | 1.6 |
| | Reform | Naomi Levin | 668 | 0.3 |
| | Total | Naomi Levin | 37,619 | 17.9 |
| Total votes | Total votes | Total votes | 210,714 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 11

The 11th district is located entirely in New York City and includes all of Staten Island and parts of southern Brooklyn. The incumbent was Republican Dan Donovan, who had represented the district since 2015. He was re-elected to a second term with 62% of the vote in 2016.

### Republican primary

Former Congressman Michael Grimm, who resigned in 2014 after pleading guilty to federal tax fraud charges for which he served eight months in prison, challenged Donovan in the primary.

#### Candidates
##### Nominee

* Dan Donovan, incumbent U.S. Representative

##### Eliminated in primary

* Michael Grimm, former U.S. Representative and convicted felon

#### Endorsements

Executive officials
* Donald Trump, President of the United States
State legislators
* Ronald Castorina, state assembly member
* Marty Golden, state senator
* Andrew Lanza, state senator
* Nicole Malliotakis, state assembly member
Labor unions
* Detectives' Endowment Association
* International Union of Elevator Constructors Local 1
* International Union of Operating Engineers
* National Education Association
* New York AFL-CIO
* Police Benevolent Association of the City of New York
* Port Authority of New York and New Jersey Police Department
* United Association Local 1
Organizations
* Brooklyn Republican Party
* Staten Island Republican Party
Local officials
* Joe Borelli, NYC Councillor
* Rudy Giuliani, former Mayor of New York City
* Steven Matteo, NYC Councillor
* James Oddo, Borough President of Staten Island

#### Debates

* Complete video of debate, June 14, 2018

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Dan Donovan (R) | Michael Grimm (R) | Other | Undecided |
| Remington Research (R) | June 20–21, 2018 | 703 | ± 3.7% | 47% | 40% | – | 13% |
| Siena College | May 29–June 3, 2018 | 513 | ± 4.3% | 37% | 47% | – | 16% |

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Dan Donovan (incumbent) | 13,515 | 62.9 |
| | Republican | Michael Grimm | 7,957 | 37.1 |
| Total votes | Total votes | Total votes | 21,472 | 100.0 |

### Democratic primary

New York's 11th district was included on the initial list of Republican-held seats being targeted by the Democratic Congressional Campaign Committee in 2018.

#### Candidates
##### Nominee

* Max Rose, Army veteran and chief of staff at Brightpoint Health

##### Eliminated in primary

* Michael DeVito, retired Marine Staff Sergeant
* Zach Emig, bond trader
* Paul Sperling, entrepreneur

##### Withdrawn

* Mike DeCillis, teacher and retired police officer (endorsed Michael DeVito)
* Boyd Melson, retired boxer and Army Reserves Captain

#### Endorsements

Organizations
* Indivisble Staten Island
* Justice Democrats
Labor unions
* New York State Public Employees Federation
U.S. Senators
* Kirsten Gillibrand, United States Senator
U.S. Representatives
* Joe Crowley, U.S. Representative
* Steny Hoyer, U.S. Representative; House Minority Whip
* Ted Lieu, U.S. Representative
* Seth Moulton, U.S. Representative
* Eric Swalwell, U.S. Representative
State officials
* Jason Kander, former Missouri Secretary of State
State legislators
* Peter J. Abbate Jr., state assembly member
Labor unions
* New York State International Association of Machinists and Aerospace Workers
* Retail, Wholesale and Department Store Union
Organizations
* Blue Dog Coalition
* End Citizens United
* NARAL Pro-Choice America
* New Democrat Coalition
* VoteVets.org
Local officials
* Justin Brannan, NYC Councillor
* Scott Stringer, New York City Comptroller
Organizations
* Our Revolution
Labor unions
* International Alliance of Theatrical Stage Employees Local 1
* International Alliance of Theatrical Stage Employees Local 4
* International Alliance of Theatrical Stage Employees Local 10
* International Brotherhood of Teamsters Local 187
* United Scenic Artists

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Max Rose | 11,539 | 63.3 |
| | Democratic | Michael DeVito Jr. | 3,642 | 20.0 |
| | Democratic | Omar Vaid | 1,589 | 8.7 |
| | Democratic | Radhakrishna Mohan | 719 | 4.0 |
| | Democratic | Paul Sperling | 486 | 2.7 |
| | Democratic | Zach Emig | 249 | 1.4 |
| Total votes | Total votes | Total votes | 18,224 | 100.0 |

### Conservative primary

Dan Donovan also ran in the primary for the Conservative Party of New York State.

#### Results

Conservative primary results :
| Party | Party | Candidate | Votes | % |
| | Conservative | Dan Donovan (incumbent) | 610 | 55.0 |
| | Conservative | Michael Grimm | 497 | 44.7 |
| | Conservative | Max Rose | 3 | 0.3 |
| Total votes | Total votes | Total votes | 1,110 | 100.0 |

### General election
#### Endorsements

Executive officials
* Donald Trump, President of the United States
State legislators
* Ronald Castorina, state assembly member
* Marty Golden, state senator
* Andrew Lanza, state senator
* Nicole Malliotakis, state assembly member
Labor unions
* Detectives' Endowment Association
* International Union of Elevator Constructors Local 1
* International Union of Operating Engineers
* National Education Association
* New York AFL-CIO
* Police Benevolent Association of the City of New York
* Port Authority of New York and New Jersey Police Department
* United Association Local 1
Organizations
* Brooklyn Republican Party
* Staten Island Republican Party
Local officials
* Joe Borelli, NYC Councillor
* Rudy Giuliani, former Mayor of New York City
* Steven Matteo, NYC Councillor
* James Oddo, Borough President of Staten Island
U.S. Senators
* Kirsten Gillibrand, United States Senator
U.S. Representatives
* Joe Crowley, U.S. Representative
* Steny Hoyer, U.S. Representative; House Minority Whip
* Ted Lieu, U.S. Representative
* Seth Moulton, U.S. Representative
* Eric Swalwell, U.S. Representative
State officials
* Jason Kander, former Missouri Secretary of State
State legislators
* Peter J. Abbate Jr., state assembly member
Labor unions
* 1199SEIU United Healthcare Workers East
* New York State International Association of Machinists and Aerospace Workers
* New York State United Teachers
* Retail, Wholesale and Department Store Union
* SEIU 32BJ
Organizations
* Blue Dog Coalition
* End Citizens United
* NARAL Pro-Choice America
* New Democrat Coalition
* VoteVets.org
Local officials
* Justin Brannan, NYC Councillor
* Scott Stringer, New York City Comptroller
Individuals
* Héctor Figueroa, President of the SEIU 32BJ

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Dan Donovan (R) | Max Rose (D) | Henry Bardel (G) | Undecided |
| NYT Upshot/Siena College | October 23–27, 2018 | 495 | ± 4.7% | 44% | 40% | 1% | 15% |
| Public Policy Polling (D) | September 4–5, 2018 | 509 | – | 47% | 39% | – | 14% |

#### Results

New York's 11th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Max Rose | 96,850 | 50.4 |
| | Working Families | Max Rose | 3,894 | 2.0 |
| | Women's Equality | Max Rose | 1,079 | 0.6 |
| | Total | Max Rose | 101,823 | 53.0 |
| | Republican | Dan Donovan | 80,440 | 41.9 |
| | Conservative | Dan Donovan | 7,352 | 3.8 |
| | Independence | Dan Donovan | 1,302 | 0.7 |
| | Reform | Dan Donovan | 347 | 0.2 |
| | Total | Dan Donovan (incumbent) | 89,441 | 46.6 |
| | Green | Henry Bardel | 774 | 0.4 |
| Total votes | Total votes | Total votes | 192,038 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 12

The 12th district is located entirely in New York City and includes several neighborhoods in the East Side of Manhattan, Greenpoint and western Queens. The incumbent was Democrat Carolyn Maloney, who had represented the district since 2013 and previously represented the 14th district from 1993 to 2013. She was re-elected to a thirteenth term with 83% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Carolyn Maloney, incumbent U.S. Representative

##### Eliminated in primary

* Suraj Patel, adjunct professor at NYU Stern School of Business

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Carolyn Maloney (incumbent) | 26,742 | 59.6 |
| | Democratic | Suraj Patel | 18,098 | 40.4 |
| Total votes | Total votes | Total votes | 44,840 | 100.0 |

### Republican primary
#### Candidates
##### Nominee

* Eliot Rabin, businessman

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 12th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Carolyn Maloney | 205,858 | 81.8 |
| | Working Families | Carolyn Maloney | 10,972 | 4.4 |
| | Reform | Carolyn Maloney | 600 | 0.2 |
| | Total | Carolyn Maloney (incumbent) | 217,430 | 86.4 |
| | Republican | Eliot Rabin | 30,446 | 12.1 |
| | Green | Scott Hutchins | 3,728 | 1.5 |
| Total votes | Total votes | Total votes | 251,604 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 13

The 13th district is located entirely in New York City and includes Upper Manhattan and a small portion of the western Bronx. The incumbent was Democrat Adriano Espaillat, who had represented the district since 2017. He was elected to replace retiring representative Charles Rangel with 89% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Adriano Espaillat, incumbent U.S. Representative

### Republican primary
#### Candidates
##### Nominee

* Jineea Butler, hip hop analyst

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 13th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Adriano Espaillat | 171,341 | 90.0 |
| | Working Families | Adriano Espaillat | 8,694 | 4.6 |
| | Total | Adriano Espaillat (incumbent) | 180,035 | 94.6 |
| | Republican | Jineea Butler | 9,535 | 5.0 |
| | Reform | Jineea Butler | 733 | 0.4 |
| | Total | Jineea Butler | 10,268 | 5.4 |
| Total votes | Total votes | Total votes | 190,303 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 14

The 14th district is located in New York City and includes the eastern Bronx and part of north-central Queens. The incumbent was Democrat Joseph Crowley, a leader of the New Democrat Coalition, who had represented the district since 2013. Crowley previously represented the 7th district from 1999 to 2013. He was re-elected to a tenth term with 83% of the vote in 2016. Crowley, who had been named as a potential successor to Nancy Pelosi as House Leader or Speaker, sought re-election in 2018.

### Democratic primary

Backed by the organization Brand New Congress, bartender and activist Alexandria Ocasio-Cortez challenged Crowley in the primary, announcing her campaign in June 2017. Ocasio-Cortez, who had been an organizer in Bernie Sanders' 2016 presidential campaign, was the first primary challenger Crowley had faced since 2004. On May 10, 2018, it was announced that she had gathered enough signatures to appear on the primary ballot. Despite this, most observers concluded that Crowley would win the primary, citing his strong support from elected officials and his large fundraising advantage.
In her campaign, Ocasio-Cortez claimed that Crowley was not progressive enough for the district, and also accused him of corruption, stating that he was using his position as chair of the Queens Democratic Party improperly. She aggressively built a presence on social media platforms, creating a biographical video promoting her campaign that went viral. Crowley significantly outspent Ocasio-Cortez prior to the primary election.

#### Candidates
##### Nominee

* Alexandria Ocasio-Cortez, bartender and activist

##### Eliminated in primary

* Joe Crowley, incumbent U.S. Representative

#### Debates

2018 New York's 14th congressional district Democratic primary debates :
| No. | Date & Time | Host | Moderator | Link | Participants | Participants |
| Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | | |
| Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Key: P Participant  A Absent  N Non-invitee  W Withdrawn | Joe Crowley | Alexandria Ocasio-Cortez |
| 1 | June 15, 2018 | NY1 | Errol Louis | | P | P |
| 2 | June 18, 2018 | The Parkchester Times | Robert Press | | P | P |

#### Endorsements

U.S. Senators
* Kirsten Gillibrand, U.S. Senator from New York
* Chuck Schumer, U.S. Senator from New York
U.S. Representatives
* Hakeem Jeffries, U.S. Representative from NY-08 (2013–present)
* Ro Khanna, U.S. Representative from CA-17 (Co-endorsement with Ocasio-Cortez)
State officials
* Andrew Cuomo, Governor of New York (2011-2021)
State legislators
* Aravella Simotas, State Representative from the 36th district (2011-2021)
Labor unions
* New York State AFL-CIO
* SEIU 32BJ
Organizations
* Giffords
* Make the Road New York
* NARAL Pro-Choice America
* Planned Parenthood Action Fund
* Queens Democratic Party
* Stonewall Democrats of NYC
* Working Families Party
Local politicians
* Costa Constantinides, NYC Council Member (2014–2021)
* Daniel Dromm, NYC Council Member (2010–present)
* Corey Johnson, speaker of the NYC Council (2018–present)
* Francisco Moya, NYC Council Member (2018–present), former State Representative
x*Ted Lieu, U.S. Representative
* Jimmy Van Bramer, NYC Council Member (2010–present)
U.S. Representatives
* Ro Khanna, U.S. Representative from CA-17 (Co-endorsement with Crowley)
Organizations
* Brand New Congress
* Democracy for America
* Justice Democrats
* MoveOn
* New York City Democratic Socialists of America
* Our Revolution
Individuals
* Cynthia Nixon, actress and candidate for governor of New York in 2018
* Susan Sarandon, actress

#### Results

Ocasio-Cortez defeated Crowley in the Democratic primary election, which was considered an upset victory.
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Alexandria Ocasio-Cortez | 16,898 | 56.7 |
| | Democratic | Joseph Crowley (incumbent) | 12,880 | 43.3 |
| Total votes | Total votes | Total votes | 29,778 | 100.0 |

### Republican primary
#### Candidates
##### Nominee

* Anthony Pappas, St. John's University economics and finance associate professor

### General election
#### Campaign

Following his defeat in the Democratic primary, Crowley remained on the ballot on the Working Families Party line, but did not actively campaign. Following Ocasio-Cortez's primary win, Joann Ariola, chairwoman of the Queens Republican Party, claimed that the Republican Party had a chance of winning the seat due to Ocasio-Cortez being a democratic socialist. Michael Rendino, chairman of the Bronx Republican Party, was more skeptical, declaring that "even if Crowley and Ocasio-Cortez split the vote, we'd still lose two-to-one".
Professor Anthony Pappas was the Republican nominee, but was disavowed by the Queens and Bronx Republican Parties after he was accused of committing domestic violence. Several Republicans approached both the Queens and Bronx Republican parties with the intent of replacing Pappas on the ballot, but Pappas refused to withdraw from the race. Pappas's campaign was based around the abolition of judicial immunity, which he argued had led to judges becoming unaccountable for their actions. Pappas's campaign manager attempted to convince him to run an aggressive campaign against Ocasio-Cortez, but he refused.

#### Endorsements

U.S. Representatives
* Ro Khanna, U.S. Representative from CA-17
Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers
* Retail, Wholesale and Department Store Union
Organizations
* Brand New Congress
* Democracy for America
* Democratic Socialists of America
* Justice Democrats
* MoveOn.org
* New York State Working Families Party
* Our Revolution
* The People for Bernie Sanders
Individuals
* Jimmy Dore, comedian and host of the Jimmy Dore Show
* Cynthia Nixon, 2018 candidate for Governor of New York, actress, and activist
* Susan Sarandon, actress and activist
* Zephyr Teachout, political activist and candidate for Attorney General of New York in 2018
* Cenk Uygur, host of The Young Turks
Organizations
* Bronx Republican Party (endorsement rescinded)
* Queens Republican Party (endorsement rescinded)
U.S. Senators
* Joe Lieberman (I-CT), former United States Senator from Connecticut from 1989 to 2013

#### Results

New York's 14th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Alexandria Ocasio-Cortez | 110,318 | 78.2 |
| | Republican | Anthony Pappas | 19,202 | 13.6 |
| | Working Families | Joseph Crowley | 8,075 | 5.7 |
| | Women's Equality | Joseph Crowley | 1,273 | 0.9 |
| | Total | Joseph Crowley (incumbent) | 9,348 | 6.6 |
| | Conservative | Elizabeth Perri | 2,254 | 1.6 |
| Total votes | Total votes | Total votes | 141,122 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 15

The 15th district is located entirely within The Bronx in New York City and is one of the smallest districts by area in the entire country. The incumbent was Democrat José E. Serrano, who had represented the district since 2013, and previously represented the 16th district from 1993 to 2013 and the 18th district from 1990 to 1993. He was re-elected to a fourteenth full term with 95% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* José E. Serrano, incumbent U.S. Representative

### Republican primary
#### Candidates
##### Nominee

* Jason Gonzalez

### Reform primary
#### Candidates
##### Nominee

* Alexandria Ocasio-Cortez (write-in) (declined nomination)

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 15th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | José Serrano | 122,007 | 94.1 |
| | Working Families | José Serrano | 2,462 | 1.9 |
| | Total | José E. Serrano (incumbent) | 124,469 | 96.0 |
| | Republican | Jason Gonzalez | 4,566 | 3.5 |
| | Conservative | Jason Gonzalez | 639 | 0.5 |
| | Total | Jason Gonzalez | 5,205 | 4.0 |
| Total votes | Total votes | Total votes | 129,674 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 16

The 16th district is located in the northern part of The Bronx and the southern half of Westchester County, including the cities of Mount Vernon, Yonkers, New Rochelle, and Rye. The incumbent was Democrat Eliot Engel, who had represented the district since 2013 and previously represented the 17th district from 1993 to 2013 and the 19th district from 1989 to 1993. He was re-elected to a fifteenth term with 95% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Eliot Engel, incumbent U.S. Representative

##### Eliminated in primary

* Joyce Briscoe
* Derickson Lawrence
* Jonathan Lewis

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Eliot Engel (incumbent) | 22,160 | 73.7 |
| | Democratic | Jonathan Lewis | 4,866 | 16.2 |
| | Democratic | Joyce Briscoe | 1,772 | 5.9 |
| | Democratic | Derickson Lawrence | 1,280 | 4.2 |
| Total votes | Total votes | Total votes | 30,078 | 100.0 |

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 16th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Eliot Engel | 172,815 | 94.9 |
| | Working Families | Eliot Engel | 6,755 | 3.7 |
| | Women's Equality | Eliot Engel | 2,474 | 1.4 |
| | Total | Eliot Engel (incumbent) | 182,044 | 100.0 |
| Total votes | Total votes | Total votes | 182,044 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 17

The 17th district contains all of Rockland County and the northern and central portions of Westchester County, including the cities of Peekskill and White Plains. The incumbent was Democrat Nita Lowey, who had represented the district since 2013 and previously represented the 18th district from 1993 to 2013 and the 20th district from 1989 to 1993. She was re-elected to a fifteenth term unopposed in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Nita Lowey, incumbent U.S. Representative

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 17th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nita Lowey | 159,923 | 82.7 |
| | Working Families | Nita Lowey | 7,336 | 3.8 |
| | Women's Equality | Nita Lowey | 2,909 | 1.5 |
| | Total | Nita Lowey (incumbent) | 170,168 | 88.0 |
| | Reform | Joseph Ciardullo | 23,150 | 12.0 |
| Total votes | Total votes | Total votes | 193,318 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 18

The 18th district is located entirely within the Hudson Valley, covering all of Orange County and Putnam County, as well as parts of southern Dutchess County and northeastern Westchester County. The incumbent was Democrat Sean Patrick Maloney, who had represented the district since 2013. He was re-elected to a third term with 56% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Sean Patrick Maloney, incumbent U.S. Representative

### Republican primary

New York's 18th district was included on the initial list of Democratic held seats that were being targeted by the National Republican Congressional Committee in 2018.

#### Candidates
##### Nominee

* James O'Donnell, Orange County legislator

### General election
#### Debate

2018 New York's 18th congressional district debate :
| No. | Date | Host | Moderator | Link | Democratic | Republican |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Sean Patrick Maloney | James O'Donnell |
| 1 | Oct. 23, 2018 | WRNN-TV | Richard French | | P | P |

#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 18th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Sean Patrick Maloney | 126,368 | 50.2 |
| | Independence | Sean Patrick Maloney | 7,726 | 3.1 |
| | Working Families | Sean Patrick Maloney | 3,929 | 1.6 |
| | Women's Equality | Sean Patrick Maloney | 1,541 | 0.6 |
| | Total | Sean Patrick Maloney (incumbent) | 139,564 | 55.5 |
| | Republican | James O'Donnell | 96,345 | 38.3 |
| | Conservative | James O'Donnell | 14,484 | 5.7 |
| | Reform | James O'Donnell | 1,206 | 0.5 |
| | Total | James O'Donnell | 112,035 | 44.5 |
| Total votes | Total votes | Total votes | 251,599 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 19

The 19th district is located in New York's Hudson Valley and Catskills regions and includes all of Columbia, Delaware, Greene, Otsego, Schoharie, Sullivan and Ulster counties, and parts of Broome, Dutchess, Montgomery and Rensselaer counties. The incumbent was Republican John Faso, who had represented the district since 2017. He was elected to replace retiring representative Chris Gibson with 54% of the vote in 2016. The Democratic nominee was Antonio Delgado. Actress Diane Neal ran under the newly created Friends of Diane Neal ballot line.

### Democratic primary

New York's 19th district was included on the initial list of Republican-held seats being targeted by the Democratic Congressional Campaign Committee in 2018.

#### Candidates
##### Nominee

* Antonio Delgado, attorney

##### Eliminated in primary

* Jeff Beals, teacher and former U.S. diplomat
* David Clegg, lawyer
* Erin Collier, economist
* Brian Flynn, businessman
* Gareth Rhodes, former gubernatorial aide
* Pat Ryan, Iraq War veteran and businessman

##### Withdrawn

* Sue Sullivan, strategic planning consultant

##### Declined

* Mike Hein, Ulster County Executive
* Zephyr Teachout, candidate for governor in 2014 and nominee for this seat in 2016
* Will Yandik, Livingston Deputy Supervisor and candidate for this seat in 2016

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Jeff Beals | Dave Clegg | Erin Collier | Antonio Delgado | Brian Flynn | Gareth Rhodes | Pat Ryan | Other | Undecided |
| Change Research (D-Collier) | June 16–17, 2018 | 319 | — | 9% | 5% | 5% | 21% | 14% | 4% | 14% | — | 27% |

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Antonio Delgado | 8,576 | 22.1 |
| | Democratic | Pat Ryan | 6,941 | 17.9 |
| | Democratic | Gareth Rhodes | 6,890 | 17.7 |
| | Democratic | Brian Flynn | 5,245 | 13.5 |
| | Democratic | Jeff Beals | 4,991 | 12.9 |
| | Democratic | David Clegg | 4,257 | 11.0 |
| | Democratic | Erin Collier | 1,908 | 4.9 |
| Total votes | Total votes | Total votes | 38,808 | 100.0 |

### Republican primary

* John Faso, incumbent

### Independent candidates

Declared
* Diane Neal, actress
Disqualified
* Dal LaMagna, businessman

### General election
#### Endorsements

U.S. Executive Branch officials
* Donald Trump, 45th President of the United States
Organizations
* National Federation of Independent Business
U.S. Executive Branch officials
* Barack Obama, 44th President of the United States
State legislators
* John R. Dunne, former state senator (Republican)
Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers
Newspapers
* The New York Times

#### Debates

* Complete video of debate, October 19, 2018

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | John Faso (R) | Antonio Delgado (D) | Other | Undecided |
| NYT Upshot/Siena College | November 1–4, 2018 | 505 | ± 4.8% | 42% | 43% | 7% | 8% |
| SurveyUSA | October 26–29, 2018 | 609 | ± 4.2% | 44% | 44% | 6% | 6% |
| Monmouth University | October 24–28, 2018 | 372 | ± 5.1% | 44% | 49% | 3% | 4% |
| Siena College | October 12–16, 2018 | 500 | ± 4.6% | 44% | 43% | 6% | 7% |
| Monmouth University | September 6–10, 2018 | 327 LV | ± 5.4% | 45% | 48% | 2% | 5% |
| Monmouth University | September 6–10, 2018 | 401 RV | ± 4.9% | 43% | 45% | 3% | 9% |
| Siena College | August 20–26, 2018 | 501 | ± 4.8% | 45% | 40% | 1% | 13% |
| IMGE Insights (R) | July 9–12, 2018 | 400 | – | 49% | 44% | – | 7% |
| DCCC (D) | June 27–28, 2018 | 545 | ± 4.2% | 42% | 49% | – | – |
| Public Policy Polling (D) | May 4–7, 2018 | 928 | ± 3.2% | 42% | 42% | – | 16% |
| Poll source | Date(s) administered | Sample size | Margin of error | John Faso (R) | Generic Democrat | Other | Undecided |
| PPP/Patriot Majority USA | February 12–13, 2018 | 703 | ± 3.7% | 41% | 43% | – | 16% |
| PPP/Patriot Majority USA | November 8–10, 2017 | 506 | ± 4.4% | 40% | 46% | – | 14% |

#### Results

New York's 19th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Antonio Delgado | 135,582 | 47.1 |
| | Working Families | Antonio Delgado | 9,237 | 3.2 |
| | Women's Equality | Antonio Delgado | 3,054 | 1.1 |
| | Total | Antonio Delgado | 147,873 | 51.4 |
| | Republican | John Faso | 112,304 | 39.0 |
| | Conservative | John Faso | 16,906 | 5.9 |
| | Independence | John Faso | 3,009 | 1.0 |
| | Reform | John Faso | 654 | 0.2 |
| | Total | John Faso (incumbent) | 132,873 | 46.1 |
| | Green | Steven Greenfield | 4,313 | 1.5 |
| | Independent | Diane Neal | 2,835 | 1.0 |
| Total votes | Total votes | Total votes | 287,894 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 20

The 20th district is located in the Capital District and includes all of Albany and Schenectady Counties, and portions of Montgomery, Rensselaer and Saratoga Counties. The incumbent was Democrat Paul Tonko, who had represented the district since 2013 and previously represented the 21st district from 2009 to 2013. He was re-elected to a fifth term with 68% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Paul Tonko, incumbent U.S. Representative

### Republican primary
#### Candidates
##### Nominee

* Joe Vitollo, nurse and Republican nominee in 2016

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 20th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Paul Tonko | 161,330 | 60.7 |
| | Working Families | Paul Tonko | 10,129 | 3.8 |
| | Women's Equality | Paul Tonko | 3,712 | 1.4 |
| | Reform | Paul Tonko | 1,640 | 0.6 |
| | Total | Paul Tonko (incumbent) | 176,811 | 66.5 |
| | Republican | Joe Vitollo | 89,058 | 33.5 |
| Total votes | Total votes | Total votes | 265,869 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 21

The 21st district, the state's largest and most rural congressional district, includes most of the North Country and the northern suburbs of Syracuse. The district borders Vermont to the east. The incumbent was Republican Elise Stefanik, who had represented the district since 2015. She was re-elected to a second term with 65% of the vote in 2016.

### Republican primary

Farmer and real estate broker Russ Finley planned on making a primary challenge of Stefanik, but later withdrew from the race, leaving Stefanik unopposed in the primary.

#### Candidates
##### Nominee

* Elise Stefanik, incumbent U.S. Representative

##### Withdrawn

* Russ Finle, farmer and real estate broker

### Democratic primary
#### Candidates
##### Nominee

* Tedra Cobb, former St. Lawrence County legislator

##### Eliminated in primary

* Don Boyajian, attorney and former congressional aide
* Emily Martz, economic development adviser
* Patrick Nelson, biochemist, campaign director for Democratic nominee Mike Derrick in 2016, candidate for Stillwater Town Board in 2015
* Dylan Ratigan, businessman, author, film producer, The Young Turks political commentator and former MSNBC host
* Katie Wilson, antiques store owner

##### Declined

* Mike Derrick, retired Army Colonel and nominee in 2016
* Martha Devaney
* Dylan Hewitt, project consultant for the Clinton Foundation
* Aaron Woolf, filmmaker and nominee in 2014

#### Debate

2018 New York's 21st congressional district democratic primary debate :
| No. | Date | Host | Moderator | Link | Democratic | Democratic | Democratic | Democratic | Democratic | Democratic |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | | | | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Don Boyajian | Tedra Cobb | Emily Martz | Patrick Nelson | Dylan Ratigan | Katie Wilson |
| 1 | Jun. 14, 2016 | WCFE-TV | | | N | P | P | P | P | P |

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tedra Cobb | 10,853 | 55.3 |
| | Democratic | Katie Wilson | 2,356 | 12.0 |
| | Democratic | Dylan Ratigan | 2,313 | 11.8 |
| | Democratic | Emily Martz | 2,165 | 11.0 |
| | Democratic | Patrick Nelson | 1,802 | 9.2 |
| | Democratic | Don Boyajian | 129 | 0.7 |
| Total votes | Total votes | Total votes | 19,618 | 100.0 |

### Green primary

Past Green Party nominee Matt Funiciello announced that he would not run in 2018. Lynn Kahn was the Green Party candidate in 2018.

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Debate

2018 New York's 21st congressional district debate :
| No. | Date | Host | Moderator | Link | Republican | Democratic | Green |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Elise Stefanik | Tedra Cobb | Lynn Kahn |
| 1 | Oct. 23, 2018 | WCFE-TV | Thom Hallock | | P | P | P |

#### Results

New York's 21st congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Elise Stefanik | 116,433 | 49.5 |
| | Conservative | Elise Stefanik | 11,398 | 4.9 |
| | Independence | Elise Stefanik | 3,369 | 1.4 |
| | Reform | Elise Stefanik | 781 | 0.3 |
| | Total | Elise Stefanik (incumbent) | 131,981 | 56.1 |
| | Democratic | Tedra Cobb | 93,394 | 39.7 |
| | Working Families | Tedra Cobb | 4,425 | 1.8 |
| | Women's Equality | Tedra Cobb | 1,972 | 0.9 |
| | Total | Tedra Cobb | 99,791 | 42.4 |
| | Green | Lynn Kahn | 3,437 | 1.5 |
| Total votes | Total votes | Total votes | 235,209 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 22

The 22nd district is located in Central New York and includes all of Chenango, Cortland, Madison and Oneida counties, and parts of Broome, Herkimer, Oswego and Tioga counties. The incumbent was Republican Claudia Tenney, who had represented the district since 2017. She was elected to replace retiring representative Richard Hanna with 47% of the vote in 2016.

### Republican primary
#### Candidates
##### Nominee

* Claudia Tenney, incumbent U.S. Representative

### Democratic primary

New York's 22nd district was included on the initial list of Republican-held seats being targeted by the Democratic Congressional Campaign Committee in 2018.

#### Candidates
##### Nominee

* Anthony Brindisi, state assembly member

### General election
#### Endorsements

U.S. Executive Branch officials
* Donald Trump, President of the United States
Organizations
* National Federation of Independent Business
Newspapers
* New York Post
Individuals
* Oliver North, President of the National Rifle Association of America
* Donald Trump Jr, businessman and son of U.S. President Donald Trump
* Eric Trump, businessman and son of U.S. President Donald Trump
U.S. Representatives
* Sherwood Boehlert, former U.S. Representative from NY-24 (Republican)
* Richard L. Hanna, former U.S. Representative from NY-22 (Republican)
Labor unions
* 1199SEIU United Healthcare Workers East
* New York State AFL-CIO
* New York State United Teachers
Organizations
* End Citizens United
* Giffords
* League of Conservation Voters
* NARAL Pro-Choice America
* U.S. Chamber of Commerce
Newspapers
* The New York Times
* The Post-Standard

#### Debate

2018 New York's 2nd congressional district debate :
| No. | Date | Host | Moderator | Link | Republican | Democratic |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Claudia Tenney | Anthony Brindisi |
| 1 | Nov. 1, 2018 | Leagues of Women Voters of Broome & Tioga Counties WSKG-TV | Charles Compton | | P | P |

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Claudia Tenney (R) | Anthony Brindisi (D) | Other | Undecided |
| NYT Upshot/Siena College | November 1–4, 2018 | 506 | ± 4.7% | 46% | 45% | – | 9% |
| Siena College | October 15–18, 2018 | 501 | ± 4.7% | 45% | 46% | – | 9% |
| The Polling Company (R-Citizens United) | October 12–13, 2018 | 400 | ± 4.9% | 50% | 42% | 1% | 7% |
| Siena College | August 20–26, 2018 | 499 | ± 4.8% | 44% | 46% | 1% | 9% |
| Zogby Analytics | April 23–27, 2018 | 358 | ± 5.2% | 40% | 47% | – | 13% |
| GQR Research (D) | March 8–12, 2018 | 500 | – | 44% | 50% | – | – |
| Public Policy Polling (D) | November 9–10, 2017 | 599 | ± 4.0% | 41% | 47% | – | 12% |
| DCCC (D) | October 10, 2017 | 561 | ± 4.1% | 43% | 45% | – | 12% |

#### Results

New York's 22nd congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Anthony Brindisi | 116,001 | 46.2 |
| | Independence | Anthony Brindisi | 5,673 | 2.3 |
| | Working Families | Anthony Brindisi | 4,651 | 1.9 |
| | Women's Equality | Anthony Brindisi | 1,390 | 0.5 |
| | Total | Anthony Brindisi | 127,715 | 50.9 |
| | Republican | Claudia Tenney | 110,125 | 43.9 |
| | Conservative | Claudia Tenney | 12,061 | 4.8 |
| | Reform | Claudia Tenney | 1,056 | 0.4 |
| | Total | Claudia Tenney (incumbent) | 123,242 | 49.1 |
| Total votes | Total votes | Total votes | 250,957 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 23

The 23rd district includes all of Allegany, Cattaraugus, Chautauqua, Chemung, Schuyler, Seneca, Steuben, Tompkins and Yates counties, along with parts of Ontario and Tioga counties. The incumbent was Republican Tom Reed, who had represented the district since 2013 and previously represented the 29th district from 2009 to 2013. He was re-elected to a fifth term with 58% of the vote in 2016.

### Republican primary
#### Candidates
##### Nominee

* Tom Reed, incumbent U.S. Representative

### Democratic primary
#### Candidates
##### Nominee

* Tracy Mitrano, Interim Director of the Executive Master's Program of the Park School of Communications at Ithaca College

##### Eliminated in primary

* Max Della Pia, retired Air Force officer
* Ian Golden, businessman
* Eddie Sundquist, attorney

##### Declined

* Paolo Cremidis, Democratic organizer and New York State Young Democrats Rural Caucus chair
* Jason Leifer, Dryden Town Supervisor
* John F. Plumb, nominee in 2016

#### Results

Although Della Pia finished slightly ahead of the other candidates on primary election night, he conceded to Mitrano after absentee ballots were counted.
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tracy Mitrano | 7,724 | 32.9 |
| | Democratic | Max Della Pia | 7,494 | 31.9 |
| | Democratic | Linda Andrei | 3,603 | 15.3 |
| | Democratic | Ian Golden | 3,142 | 13.4 |
| | Democratic | Eddie Sundquist | 1,538 | 6.5 |
| Total votes | Total votes | Total votes | 23,501 | 100.0 |

### Women's Equality primary

Tracy Mitrano ran unopposed for the Women's Equality Party nomination.

#### Results

Women's Equality Party primary results :
| Party | Party | Candidate | Votes | % |
| | Women's Equality | Tracy Mitrano | 4 | 100.0 |
| Total votes | Total votes | Total votes | 4 | 100.0 |

### General election
#### Endorsements

U.S. Executive Branch officials
* Donald Trump, President of the United States
Organizations
* Citizens for Responsible Energy Solutions
* National Federation of Independent Business
Newspapers
* The Buffalo News
Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers
Newspapers
* The Cornell Daily Sun
Local officials
* Svante Myrick, Mayor of Ithaca

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Tom Reed (R) | Tracy Mitrano (D) | Undecided |
| Change Research (D-Mitrano) | October 23–24, 2018 | 510 | – | 49% | 47% | – |

#### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Likely R | October 23, 2018 |

#### Results

New York's 23rd congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Tom Reed | 114,722 | 47.7 |
| | Conservative | Tom Reed | 12,274 | 5.1 |
| | Independence | Tom Reed | 3,327 | 1.4 |
| | Total | Tom Reed (incumbent) | 130,323 | 54.2 |
| | Democratic | Tracy Mitrano | 100,914 | 42.0 |
| | Working Families | Tracy Mitrano | 6,464 | 2.7 |
| | Women's Equality | Tracy Mitrano | 2,554 | 1.1 |
| | Total | Tracy Mitrano | 109,932 | 45.8 |
| Total votes | Total votes | Total votes | 240,255 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 24

The 24th district includes all of Cayuga, Onondaga and Wayne counties, and the western part of Oswego County. The incumbent was Republican John Katko, who had represented the district since 2015. He was re-elected to a second term with 61% of the vote in 2016.

### Republican primary
#### Candidates
##### Nominee

* John Katko, incumbent U.S. Representative

### Democratic primary

New York's 24th district was included on the initial list of Republican-held seats being targeted by the Democratic Congressional Campaign Committee in 2018.

#### Candidates
##### Nominee

* Dana Balter, Syracuse University professor

##### Eliminated in primary

* Juanita Perez Williams, former Syracuse mayoral candidate

##### Declined

* Eric Kingson, professor and candidate in 2016
* Phil LaTessa, former Syracuse City Auditor
* Steve Michaels, attorney
* Stephanie Miner, Mayor of Syracuse
* Chris Ryan, Onondaga County legislator
* Steve Williams, attorney and candidate in 2016

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Dana Balter (D) | Juanita Perez Williams (D) | Other | Undecided |
| Siena College | June 10–12, 2018 | 513 | ± 4.5% | 32% | 45% | – | 23% |

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dana Balter | 14,897 | 62.4 |
| | Democratic | Juanita Perez Williams | 8,958 | 37.6 |
| Total votes | Total votes | Total votes | 23,855 | 100.0 |

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | John Katko (R) | Dana Balter (D) | Undecided |
| Siena College | October 18–22, 2018 | 500 | ± 4.6% | 53% | 39% | 8% |
| Siena College | August 20–23, 2018 | 513 | ± 4.7% | 54% | 39% | 7% |
| Public Policy Polling (D) | July 26–27, 2018 | 785 | – | 43% | 47% | 10% |

#### Results

New York's 24th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | John Katko | 113,538 | 43.6 |
| | Conservative | John Katko | 16,972 | 6.5 |
| | Independence | John Katko | 5,454 | 2.1 |
| | Reform | John Katko | 956 | 0.4 |
| | Total | John Katko (incumbent) | 136,920 | 52.6 |
| | Democratic | Dana Balter | 115,902 | 44.6 |
| | Working Families | Dana Balter | 4,784 | 1.8 |
| | Women's Equality | Dana Balter | 2,540 | 1.0 |
| | Total | Dana Balter | 123,226 | 47.4 |
| Total votes | Total votes | Total votes | 260,146 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 25

The 25th district is located entirely within Monroe County, centered on the city of Rochester. The seat was vacant due to the March 2018 death of incumbent Democratic representative Louise Slaughter, who represented the district from 2013 to 2018 and previously represented the 28th district from 1993 to 2013 and the 30th district from 1987 to 1993.
Following precedent set in 2010, two concurrent elections were held in November 2018. One election was held to fill the seat for the 2018 lame-duck session, and another was held to fill the seat for the 2019–2020 term.

### Democratic primary
#### Candidates
##### Nominee

* Joseph Morelle, New York State Assembly Majority Leader

##### Eliminated in primary

* Rachel Barnhart, former television journalist
* Adam McFadden, Rochester City Council member
* Robin Wilt, Brighton town board member

##### Withdrawn

* Andrew Gilchrist, teacher

#### Debate

2018 New York's 25th congressional district democratic primary debate :
| No. | Date | Host | Moderator | Link | Democratic | Democratic | Democratic | Democratic |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Rachel Barnhart | Adam McFadden | Joseph Morelle | Robin Wilt |
| 1 | Oct. 21, 2018 | WXXI-TV | Evan Dawson | | P | P | P | P |

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Joseph Morelle | 16,245 | 45.7 |
| | Democratic | Rachel Barnhart | 7,003 | 19.7 |
| | Democratic | Robin Wilt | 6,158 | 17.3 |
| | Democratic | Adam McFadden | 6,103 | 17.2 |
| Total votes | Total votes | Total votes | 35,509 | 100.0 |

### Republican primary
#### Candidates
##### Nominee

* Jim Maxwell, neurosurgeon

### General election
#### Debate

2018 New York's 25th congressional district debate :
| No. | Date | Host | Moderator | Link | Democratic | Republican |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Joseph Morelle | Jim Maxwell |
| 1 | Oct. 25, 2018 | WXXI-TV | Evan Dawson | | P | P |

#### Endorsements

State officials
* Andrew Cuomo, Governor of New York
Labor unions
* 1199SEIU United Healthcare Workers East
* American Federation of Government Employees
* New York State United Teachers
* United Steelworkers
* Workers United
Organizations
* Congressional Progressive Caucus
* NARAL Pro-Choice America
Newspapers
* City Newspaper

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Joseph Morelle (D) | Jim Maxwell (R) | Undecided |
| Dixie Strategies | October 29–30, 2018 | 843 | ± 3.37% | 49% | 39% | 12% |
| Siena College | October 4–8, 2018 | 465 | ± 4.7% | 53% | 36% | 11% |
| Siena College | August 15–19, 2018 | 500 | ± 4.4% | 55% | 31% | 13% |

#### Results

New York's 25th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Joseph Morelle | 147,979 | 54.8 |
| | Independence | Joseph Morelle | 4,585 | 1.7 |
| | Working Families | Joseph Morelle | 4,575 | 1.7 |
| | Women's Equality | Joseph Morelle | 2,105 | 0.8 |
| | Total | Joseph Morelle | 159,244 | 59.0 |
| | Republican | Jim Maxwell | 91,342 | 33.8 |
| | Conservative | Jim Maxwell | 17,781 | 6.6 |
| | Reform | Jim Maxwell | 1,613 | 0.6 |
| | Total | Jim Maxwell | 110,736 | 41.0 |
| Total votes | Total votes | Total votes | 269,980 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 26

The 26th district is located in Erie and Niagara counties and includes the cities of Buffalo and Niagara Falls. The incumbent was Democrat Brian Higgins, who had represented the district since 2013, and previously represented the 27th district from 2005 to 2013. He was re-elected to a seventh term with 75% of the vote in 2016.

### Democratic primary
#### Candidates
##### Nominee

* Brian Higgins, incumbent U.S. Representative

### Republican primary
#### Candidates
##### Nominee

* Renee Zeno, businesswoman

### General election
#### Endorsements

Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers

#### Results

New York's 26th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Brian Higgins | 156,968 | 68.0 |
| | Working Families | Brian Higgins | 8,929 | 3.9 |
| | Women's Equality | Brian Higgins | 3,269 | 1.4 |
| | Total | Brian Higgins (incumbent) | 169,166 | 73.3 |
| | Republican | Renee Zeno | 61,488 | 26.7 |
| Total votes | Total votes | Total votes | 230,654 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 27

The 27th district is located in Western New York and includes all of Orleans, Genesee, Wyoming and Livingston counties, and parts of Erie, Monroe, Niagara and Ontario counties.
Incumbent Republican Chris Collins, who had represented the district since 2013, ran for re-election. He was re-elected to a third term with 67% of the vote in 2016,

### Republican primary
#### Candidates
##### Nominee

* Chris Collins, incumbent U.S. Representative

##### Withdrawn

* Larry Piegza, computer technician and entrepreneur; remained in election as nominee of the Reform Party
* Frank C. Smierciak II, medical payment worker

### Democratic primary

New York's 27th district was included on the initial list of Republican-held seats being targeted by the Democratic Congressional Campaign Committee in 2018.

#### Candidates
##### Nominee

* Nate McMurray, Supervisor of Grand Island

##### Withdrawn

* Sean Bunny, prosecutor
* Erin Cole, U.S. Army veteran, former senior vice president of Global NY
* Nick Stankevich, businessman

### General election
#### Campaign

On August 11, 2018, Collins announced that he would withdraw from his re-election campaign after being arrested for insider trading. Removing himself from the ballot would have required Collins to be nominated as a dummy candidate in another election or to move his legal place of residence out of state (he has additional homes in Florida and the District of Columbia). On September 17, 2018, Collins announced that he had changed course and would campaign for re-election in November after all.

##### Potential Republican replacements

Following Collins's August 11 announcement that he would withdraw from the race, as many as 20 candidates expressed interest in the Republican nomination. (Collins later changed course and opted to seek re-election.) Among them were the following:
* David Bellavia, Iraq War veteran and radio host
* Lynne Dixon, Erie County legislator
* Patrick M. Gallivan, state senator
* Stephen Hawley, state assemblyman
* Chris Jacobs, state senator and former New York Secretary of State
* Stefan Mychajliw, Erie County Comptroller
* Robert Ortt, state senator
* Carl Paladino, 2010 gubernatorial nominee, former member of the Buffalo Public Schools Board of Education and founder of Ellicott Development Co.
* Michael Ranzenhofer, state senator
* Ed Rath, Erie County legislator
* Ray Walter, state assemblyman

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Chris Collins (R) | Nate McMurray (D) | Larry Piegza (REF) | Undecided |
| Dixie Strategies | October 29–30, 2018 | 801 | ± 3.46% | 45% | 38% | – | 17% |
| NYT Upshot/Siena College | October 24–29, 2018 | 501 | ± 4.8% | 44% | 40% | 3% | 13% |
| Tulchin Research (D-McMurray) | October 25–28, 2018 | 400 | ± 4.9% | 43% | 47% | 4% | 6% |
| Siena College | October 6–11, 2018 | 490 | ± 4.7% | 46% | 43% | 1% | 10% |
| Tulchin Research (D-McMurray) | October 6–8, 2018 | 400 | ± 4.9% | 42% | 42% | 6% | 10% |
With Jacobs
| Poll source | Date(s) administered | Sample size | Margin of error | Chris Jacobs (R) | Nate McMurray (D) | Undecided |
| Clout Research (R) | August 13, 2018 | 338 | ± 5.3% | 46% | 35% | 19% |
With Mychajliw
| Poll source | Date(s) administered | Sample size | Margin of error | Nate McMurray (D) | Stefan Mychajliw (R) | Undecided |
| Clout Research (R) | August 13, 2018 | 338 | ± 5.3% | 36% | 49% | 15% |
With Ortt
| Poll source | Date(s) administered | Sample size | Margin of error | Nate McMurray (D) | Rob Ortt (R) | Undecided |
| Clout Research (R) | August 13, 2018 | 338 | ± 5.3% | 35% | 43% | 22% |
With Paladino
| Poll source | Date(s) administered | Sample size | Margin of error | Nate McMurray (D) | Carl Paladino (R) | Undecided |
| Clout Research (R) | August 13, 2018 | 338 | ± 5.3% | 45% | 47% | 9% |

#### Endorsements

Local officials
* Michael R. Long, former NYC Councillor
State officials
* Kathy Hochul, Lieutenant Governor of New York
Labor unions
* 1199SEIU United Healthcare Workers East
* New York State United Teachers
Newspapers
* The Buffalo News
* The New York Post

#### Results

New York's 27th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Chris Collins | 114,506 | 40.2 |
| | Conservative | Chris Collins | 23,553 | 8.2 |
| | Independence | Chris Collins | 2,087 | 0.7 |
| | Total | Chris Collins (incumbent) | 140,146 | 49.1 |
| | Democratic | Nate McMurray | 128,167 | 45.0 |
| | Working Families | Nate McMurray | 8,090 | 2.8 |
| | Women's Equality | Nate McMurray | 2,802 | 1.0 |
| | Total | Nate McMurray | 139,059 | 48.8 |
| | Reform | Larry Piegza | 5,973 | 2.1 |
| Total votes | Total votes | Total votes | 285,178 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |