Two Democratic candidates choose opposite tacks on public safety and policing, seeking to corral undecided voters.

© Jae C. Hong/Associated Press

State and local investigators executed a warrant on Tuesday to search the Boyle Heights building, which burned for days in June. A community group also sued the E.P.A. to get environmental data.

© Mark Abramson for The New York Times

The growing use of walk-and-talk social videos can be traced to Zohran Mamdani’s successful campaign for mayor of New York City. But not all candidates are naturals on camera.