A young woman in the process of renewing her permission as a “Dreamer” to remain in the United States legally was arrested by Immigration and Customs Enforcement after speaking at a press conference where she urged President Donald Trump to protect people like her. Now two Democratic senators want answers.

Daniela Vargas, 22, was detained by ICE agents who pulled over a friend’s car on a nearby freeway after she left a coalition of clergy members, civil rights lawyers and other advocates for immigrants at Jackson City Hall, according to one of her lawyers, Nathan Elmore.