In the Bronx, the incumbent District Attorney Darcel Clark is facing a Democratic primary challenge from Tess Cohen, a former prosecutor and criminal defense lawyer who has promised to bring more scrutiny to Rikers Island.

In Queens, the incumbent District Attorney Melinda Katz is facing a Democratic primary challenge from her right in the former Criminal Court Judge George Grasso, and from her left in the public defender Devian Daniels.

The Ninth Council District’s Democratic primary in Harlem pits two State Assembly members, Inez Dickens and Al Taylor, against Yusef Salaam, one of five men who were convicted and then exonerated in a 1989 rape and assault of a female jogger in Central Park. The name of Councilwoman Kristin Richardson Jordan, the incumbent, remains on the ballot despite dropping out of the race last month.

In the 43rd Council District, a new, largely Asian district in southern Brooklyn, Susan Zhuang, the chief of staff to Assemblyman William Colton, is facing off against Wai Yee Chan, a nonprofit executive, and Stanley Ng, a retired computer programmer, in the Democratic primary. In the Republican primary, Vito LaBella, a retired police officer, is competing against Ying Tan, a community activist.