The temporary block was granted after groups filed a class-action lawsuit after the Supreme Court limited the ability of judges to block orders nationwide through other means.

President Donald Trump’s executive order seeking to end birthright citizenship will be back in court Thursday for its first major hearing since the Supreme Court limited the way in which lower courts can halt the controversial policy.

The lawsuit, filed on behalf of a pregnant woman, two parents and their infants, is among numerous cases challenging Trump’s January order denying citizenship to those born to parents living in the U.