In the final Democratic debate in the primary for mayor of New York City, seven candidates sparred over immigration, affordability and President Trump’s policies. But more often, the debate on Thursday devolved into sharp personal attacks.

The most pointed exchanges involved former Gov. Andrew M. Cuomo and Assemblyman Zohran Mamdani, the two front-runners in polls.

Mr. Cuomo pummeled Mr. Mamdani, arguing that his inexperience was dangerous. Mr. Mamdani criticized the former governor as out-of-touch and beholden to the same special interests that support Mr. Trump.

Other candidates often entered the fray. Brad Lander, the city comptroller, drew attention to Mr. Cuomo’s handling of nursing home deaths during the pandemic and the sexual harassment allegations that led to his resignation as governor in 2021.

The debate was the candidates’ best and possibly last chance to grab attention ahead of the start of early voting on Saturday. The primary will be held June 24.

Here are five takeaways from the debate.

Ganging up on Cuomo

Mr. Cuomo is still clearly viewed as the front-runner based on the attacks he faced from his rivals. Several of the candidates mentioned the sexual harassment allegations, which he has denied.