LaMonica McIver holds a commanding lead in the NJ-10 Democratic primary as the incumbent who won a 2024 special election to succeed the late Rep. Donald Payne Jr. All three county Democratic organizations endorsed her early, alongside a recent New Jersey Working Families Party backing that highlights her record on working-family issues and opposition to certain federal policies. She has raised substantial campaign funds and faces only one opponent, political newcomer Lawrence Poster, who lacks comparable endorsements, visibility, or organizational support in the heavily Democratic district. The June 2 primary is unlikely to shift without major late developments such as unexpected turnout surges or unforeseen events that could elevate the challenger.