Incumbent LaMonica McIver holds a commanding position in the NJ-10 Democratic primary as the candidate who succeeded the late Rep. Donald Payne Jr. and secured a full term in 2024. All three county Democratic organizations have endorsed her, reinforcing party infrastructure support ahead of the June 2 vote in this heavily Democratic district spanning Essex, Hudson, and Union counties. Challenger Lawrence Poster, a 77-year-old consultant running on a middle-class platform, lacks comparable institutional backing. The 98 percent trader consensus reflects these structural advantages and the absence of recent developments that would shift momentum. A significant upset would require unusually high challenger turnout or unforeseen late developments in the final hours before polls close.