Doris Muñoz saw the crowd streaming in — grandmothers, young children and college students, many outfitted in Selena T-shirts — and pulled out her phone. “I had to FaceTime my mom and just cry it out,” she said recently.

It was July of last year, and Muñoz, a Los Angeles-based music promoter and manager, was at Lincoln Center’s Damrosch Park for Selena for Sanctuary, a concert named for the pioneering Tejano star that was the largest in a series of events Muñoz had dreamed up with her mother and father in mind.

In early 2017, when California was at the center of the fight over sanctuary cities that arose in the wake of President Trump’s inauguration, Muñoz held a concert in Los Angeles to raise funds to help cover her mother’s legal fees as she worked to attain citizenship. Muñoz grew up as the only United States citizen in a family of five in San Bernardino, Calif. Her parents came to the United States from Mexico in 1989.

“I was afraid that one day I would get that call that I was fearing my whole life, that one of my parents were deported,” Muñoz, 25 , said in a phone interview.