A group of immigrant rights groups and parents are continuing their legal fight over birthright citizenship, days after the Supreme Court sided with the Trump administration to limit judges’ ability to block presidential policy via nationwide injunctions.

Effective immediately, the Trump administration can begin planning for how it would implement an end to birthright citizenship.

In Trump v. CASA, the Supreme Court significantly narrowed federal courts’ power to issue “universal” or “nationwide” injunctions—broad orders that bar the government from enforcing a policy against anyone,