Former Big Law attorney Jonathan Petts has been working flat out ever since a U.S. Supreme Court ruling last month shielded thousands of immigrants who arrived in the country as children from deportation.

President Donald Trump has said he will try again to end the Deferred Action for Childhood Arrivals (DACA). Most of the program’s roughly 649,000 beneficiaries, known as “Dreamers,” are young adults born in Mexico and other Latin American countries.