President Donald Trump’s “zero tolerance” immigration policy drew sharp rebukes after it was announced in April 2018 — especially after children who had been separated from their parents started being placed in a tent city in Tornillo. Trump signed an executive order June 20 that would keep immigrant families together, but it’s unclear how — or if — families that have already been separated will be reunited. With support from the Pulitzer Center on Crisis Reporting, The Texas Tribune has been reporting on the issue from the Texas-Mexico border, Washington, D.C., and Austin. You can help by sending story tips to tips@texastribune.org.More in this series

A federal judge in San Diego on Tuesday barred the separation of migrant children from their parents and ordered immigration officials to reunify within 30 days families that have been divided as a result of a “zero tolerance” policy enforced by the Trump administration until last week.

Judge Dana Sabraw of the United States District Court for the Southern District of California granted a preliminary injunction sought by the American Civil Liberties Union.

An executive order issued by Trump last week ended the policy of forced separation, replacing it with family detention, but about 2,000 children remain split from their parents. The government had urged Sabraw not to grant the injunction, saying the president’s order, which followed days of bipartisan outcry, had resolved the concerns of the suit.

A mother and her 6-year-old daughter, split up after arriving in the United States in November in search of asylum from religious persecution in the Democratic Republic of Congo, were at issue in the ACLU’s suit. The pair were reunited in March, but the civil-liberties group is taking up class-action claims by other migrants.

The federal court said all children must be returned to their families within 30 days. Children under 5 must be reunited with parents within 14 days.