The 2026 United States Senate election in New Jersey was held on November 3, 2026 in concurrence with elections to the House of Representatives as part of the 2026 United States elections to elect a member of the United States Senate to represent the state of New Jersey. Democratic incumbent Cory Booker was re-elected to a third full term, defeating Republican former Tabernacle deputy mayor Justin Murphy.
Primary elections were held on June 2. Booker ran unopposed for the Democratic nomination. In the Republican primary, Murphy won the nomination with 33.3% of the vote over state trooper Richard Tabor and journalist Alex Zdan.
Booker defeated Murphy by a margin of 27.2%, marking the strongest performance of his senatorial career and the best performance for a statewide Democrat in a Senate race since 1984. He also won two reliably Republican counties, Hunterdon and Monmouth, making him the first Democrat to win them since the 1984 Senate election and the 2001 gubernatorial election, respectively. Monmouth County last voted Democratic for Senate in 1988.
Democratic primary
Candidates
Nominee
- Cory Booker, incumbent U.S. senator (2013–present)
Withdrawn
- Saxon Callahan
- Chris Fields, community organizer
- Alex Hammerli, podcaster and actor
- Lisa McCormick, activist and perennial candidate
Endorsements
Cory Booker
Republican primary
Candidates
Nominee
- Justin Murphy, former Deputy Mayor of Tabernacle Township and perennial candidate
Eliminated in primary
- Robert Lebovics, physician and nominee for New Jersey's 37th senate district in 2005 and 2011
- Richard Tabor, New Jersey state trooper and candidate for New Jersey's 20th assembly district in 2025
- Alex Zdan, former News 12 reporter and candidate for U.S. Senate in 2024
Withdrawn
- Natalie Rivera, activist and independent candidate for U.S. Senate in 2018 and Republican candidate for U.S. Senate in 2020
Declined
- Curtis Bashaw, former executive director of the Casino Reinvestment Development Authority and nominee for U.S. Senate in 2024 (running for Cape May County commissioner)
- Vinnie Brand, stand-up comedian and owner of The Stress Factory
- Edward Durr, former state senator from the 3rd district (2022–2024) and candidate for governor in 2025
- Mike Testa, state senator from the 1st district (2019–present) and Cumberland County Republican chair (2014–present) (endorsed Zdan)
Endorsements
Alex Zdan
- Dick LaRossa, former SD-15 (1992–1998)
- Doug Steinhardt, SD-23 (2022–present), chair of the Warren County Republican Party (2004–present)
- Mike Testa, SD-01 (2019–present) and Cumberland County Republican Party chair (2014–present)
- Jack Ball, former mayor of Ewing Township (2007–2010)
- David Fried, former mayor of Robbinsville Township (2000–2025)
- Robert Prunetti, former Mercer County Executive (1992–2004)
- Michel F. Hurtado, candidate for Mercer County Commissioner in 2021 and Republican candidate for the 15th District in 2023
- Bergen County Republican Organization
- Burlington County Republican Organization
- Cape May County Republican Organization
- Cumberland County Republican Organization
- Essex County Republican Organization
- Ewing Township Republican Committee
- Passaic County Republican Organization
- Salem County Republican Organization
Declined to endorse
- Morris County Republican Organization
Results
Murphy
30–40%
40–50%
50–60%
70–80%
Tabor
30–40%
40–50%
50–60%
60–70%
Zdan
30–40%
40–50%
50–60%
Murphy
20–30%
30–40%
40–50%
50–60%
60–70%
70–80%
80–90%
90–100%
Tabor
20–30%
30–40%
40–50%
50–60%
60–70%
70–80%
80–90%
90–100%
Zdan
20–30%
30–40%
40–50%
50–60%
60–70%
70–80%
80–90%
90–100%
Lebovics
20–30%
30–40%
40–50%
50–60%
60–70%
90–100%
Other
20–30% Tie
30–40% Tie
40–50% Tie
50% Tie
No Votes
Third-party and independent candidates
Candidates
Declared
- Eduardo Castillo (write-in)
- Veronica Fernandez (End the Corruption!), perennial candidate
- Joanne Kuniansky (Socialist Workers Party), candidate for governor of New Jersey in 2025
Did not qualify
- Nicholas Carducci, software engineer and candidate for U.S. Senate in 2024
- Michael Estrada
Withdrawn
- Natalie Lynn Rivera (Together for NJ), activist and independent candidate for U.S. Senate in 2018 and Republican candidate for U.S. Senate in 2020
General election
Post-primary endorsements
Cory Booker (D)
Results
Counties that flipped from Republican to Democratic
- Hunterdon (largest municipality: Raritan Township)
- Monmouth (largest municipality: Middletown)