We’re tuning in live as the justices consider what could be one of the most consequential First Amendment rulings of the past several decades.

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.

TikTok has just ten days until it faces a possible ban in the US. If the Supreme Court declines to halt the law before January 19th, and TikTok isn’t spun off from its Chinese parent company ByteDance, companies like Apple and Google will be forced to stop maintaining the app in their app stores or letting it push updates.