The court is hearing oral arguments on TikTok’s bid to block a law that would lead to its ban in the U.S. starting Jan. 19 if it isn’t sold by its Chinese owner.

The law that could ban TikTok is coming before the Supreme Court on Friday, with the justices largely holding the app's fate in their hands.

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