JERSEY CITY, New Jersey — The race to become Jersey City’s next mayor is shaping up to be one of the most competitive in recent history, featuring a diverse lineup of seven candidates, including former New Jersey Governor Jim McGreevey. Each contender is offering distinct visions for the city’s future, with housing affordability, development, and integrity in governance emerging as central themes in the campaign. McGreevey, once a prominent figure in state politics, is attempt