Watch live: Outside the US Supreme Court as TikTok's latest appeals against a potential ban are heard

Watch live as the U.S. Supreme Court hears oral arguments from TikTok and its parent company, ByteDance, to block a law that plans to mandate sales of the app by Jan. 19 or face a ban on national security grounds.

TikTok’s parent company is based in China, and the US government says that means it is a potential national security threat. They say Chinese authorities could force the country to hand over sensitive data on the large number of Americans who use it or could influence the release of information on the platform.

An appeals court has upheld the law, which bans TikTok unless it is sold.

The law is set to go into effect a day before the start of the new term of President-elect Donald Trump, who has 14.7 million followers on the platform. Republican says he wants to save Tik Tok.

His message represents a dramatic shift from his past stance on the show.

In July 2020, he told reporters, “We’re banning them from the United States,” and later sought to do so through an executive order, though TikTok later overturned the ban in court.