Supreme Court Chief Justice John Roberts reined in Justice Sonia Sotomayor during argument over birthright citizenship and nationwide court injunctions on Thursday.

Sotomayor dominated questioning for several minutes at the outset of Thursday’s argument after taking over from Justice Clarence Thomas. She pressed U.S. Solicitor General John Sauer for President Donald Trump’s administration on several points relating to the authority for federal courts to issue nationwide injunctions, often speaking over the lawyer and interrupting him.

Sotomayor argued that Trump’s order invalidating birthright citizenship violated four Supreme Court precedents, and that it was justified for a federal judge to grant an injunction against such a controversial order.

“You are claiming that not just the Supreme Court, that both the Supreme Court and no lower court, can stop an executive from universally violating holdings by this court,” Sotomayor said.

“We are not claiming that because we’re conceding that there could be a in an appropriate case only in class only,” Sauer said.

“But I hear that–,” Sotomayor said, beginning to interrupt Sauer.

“Can I hear the rest of his answer?” Roberts then interjected.

Sauer then elaborated on his statement, saying the government is arguing that federal courts can intervene on behalf of specific plaintiffs before them, but not nationwide. He said the Supreme Court has the authority to grant nationwide injunctions in certain circumstances.

This is a developing story. Check back soon for updates.