Some food trucks, farmers markets and small restaurants are temporarily closed, while others are shielding workers and raising funds to help.

Lawyers and industry groups offer a hotline, tipsheets and “know your rights” cards to help protect constitutional rights.

As ICE agents swoop into places around the country that rely on immigrant labor, Salvador Melendez sees the effects firsthand as mayor of Montebello, a working-class, predominantly Latino city just 10 miles east of Los Angeles.