In the case currently before the Court, TikTok has sued the U.S. government on First Amendment grounds, arguing that the law impermissibly chills free speech — both that of its users and the company itself. Attorney Noel Francisco told the Court on Friday that the ban constitutes “uniquely harsh treatment” toward ByteDance and TikTok.

The law that could ban TikTok is coming before the Supreme Court. The justices largely hold the app’s fate in their hands as they hear the case Friday.

Congress labeled the app’s Chinese ownership a national security risk and passed a law that would ban the social media platform unless it was sold. TikTok and creators say that violates their free speech rights.