New Jersey Republicans went into the 2026 Senate cycle without a declared candidate for months — a remarkable situation for a party trying to hold the Senate majority, in a state where the Democratic incumbent is theoretically vulnerable. The party’s establishment figures declined to run. The names that circulated — Alina Habba, State Sen. Michael Testa — didn’t commit. When Alex Zdan, a former News 12 reporter, announced his candidacy and received the endorsement of the Passaic County Republican Organization, it became the most prominent Republican Senate campaign in New Jersey because there wasn’t much competition.
This is not an indictment of Zdan specifically. It’s a description of where New Jersey Republican politics stood in early 2026.
The Structural Reality
New Jersey last elected a Republican senator in 1972. That’s not a period of political history that contains useful lessons for contemporary campaigns. The state’s registration advantage for Democrats — more than a million voters — and its geographic concentration of Democratic voters in the Newark/Jersey City/Paterson corridor, the South Jersey suburbs of Philadelphia, and the Princeton-Trenton corridor means that the Republican path to Senate majority runs through somewhere other than New Jersey in almost every cycle.
Booker won by 16 points in 2020. Even in a wave Republican year, the structural math requires something extraordinary to happen in Bergen County, Monmouth County, and Ocean County — the suburban Republican base — while simultaneously holding down margins everywhere else.
The Case for Watching Anyway
New Jersey has produced gubernatorial surprises — Chris Christie won twice, and the 2021 governor’s race came down to a few thousand votes. New Jersey voters split tickets. The state’s high cost of living, property tax burden, and frustration with Trenton can be channeled into anti-Democratic energy that doesn’t always show up in Senate races but occasionally does.
If the 2026 national environment shifts dramatically against Democrats — if economic anxiety or a specific galvanizing issue drives Republican turnout in suburban New Jersey’s exurbs — the margin can narrow. Whether it can narrow from 16 points to something competitive is the question.
Against Booker
Booker’s vulnerabilities are structural and national rather than personal. His high profile — presidential candidate, Senate floor marathoner, nationally recognized progressive voice — makes him both a fundraising magnet and a Republican attack target. His record on the Judiciary Committee and his vocal opposition to Trump administration policies give Republicans material for nationalization arguments.
Whether any of that translates into votes in New Jersey depends on whether the electorate is in a mood to punish a specific senator for his national positions, or whether they evaluate him on the constituent service, project funding, and institutional relationships that keep senators in office in competitive states. New Jersey senators have historically been judged on the latter.
What to Watch
Fundraising — if national Republicans invest significantly in this race, it signals genuine competitive intent. If Booker’s fundraising margin stays at 10-to-1 or greater, the party has written off the seat before the first debate. The margin also matters for the map: Booker wins in the mid-20s, and this cycle is noise. Booker wins at 12-14, and Democrats have a warning they’ll need to heed in 2032.