**The non-competitive nature of the 2026 New Jersey Senate race, with incumbent Democrat Cory Booker heavily favored over Republican Justin Murphy in a Solid Democratic contest, has kept mobilization efforts subdued and concentrated trader expectations on moderate midterm turnout levels in the 2.8M–3.4M range.** Light Republican primary participation in June 2026 and limited post-primary campaign intensity have produced few signals of heightened engagement. Historical patterns show midterm turnout in New Jersey typically falls well below the 67% eligible-voter rate recorded in the 2024 presidential election, consistent with the 41% seen in 2022. Democratic registration advantages and expanded early and mail voting options may support participation in urban and suburban areas, but the absence of a tight contest or major recent catalysts has left probabilities clustered around these mid-range outcomes rather than higher or lower extremes.