Until the order, which Trump signed the same day he was inaugurated as the 47th president, the U.S. government has, at least the late 1800s, considered the child of any immigrant born on U.S. soil an automatic citizen, even to a mother in the United States illegally.

The Delaware Department of Justice is joining 17 states in suing the Trump administration for its order ending birthright citizenship.

The move by Prospect Medical Holdings was long expected. Its local hospitals, including Crozer-Chester Medical Center in Upland and Taylor Hospital in Ridley Park, are expected to continue operating.