An unnecessary regulation requiring operable windows in residential buildings is preventing a solution to both homelessness and empty downtowns from being implemented.

Experts worry the unusual move, driven by vaccine misinformation, could fuel further efforts to interfere with immunizations.

© Janie Osborne for The New York Times

Readers praise an outreach program on the streets of California. Also: Election panic; the climate stakes; election fraud; questions for Trump and Vance.