New Jersey Political History & Voting Patterns
Competitive through 1980s-90s; reliably D since 2000. A complete guide to how New Jersey has voted in presidential elections, which coalitions have driven results, and how the state has shifted over time.
Historical Overview
New Jersey’s political geography is a study in suburbs. The Philadelphia suburbs (Camden, Burlington, Gloucester Counties) vote Democratic; the New York metro suburbs (Bergen, Morris Counties) used to vote Republican but have shifted. Bob Menendez held the Senate seat from 1991 before his federal corruption conviction in 2024 led Andy Kim to run and win. The state’s political scandal history (Menendez, Jim McGreevey’s resignation, Chris Christie’s Bridgegate) has shaped its culture of skeptical voters. Phil Murphy served two terms before Jack Ciattarelli won the 2025 governor’s race.
Key Elections & Turning Points
| Year | Significance |
|---|---|
| 1988 | Bush won NJ |
| 1993 | Christie Whitman beat Jim Florio in wave-R year |
| 2001 | Jim McGreevey won; Corzine won 2005; Christie 2009 |
| 2017 | Murphy won; end of Christie era |
| 2021 | Murphy barely re-elected vs. Ciattarelli |
| 2024 | Harris +11 — shrinking margin vs. Biden 2020 |
Geographic Voting Patterns
Democratic Strongholds
Essex County (Newark, D+70+), Hudson County (Jersey City/Hoboken), Union County
Republican Strongholds
Ocean County (Toms River, R+35), Monmouth County (shifting), Morris County (historically R)
Realignment Driver
Primary factor: Suburban education gap, NYC commuter culture, ethnic community politics, post-Christie fatigue