Watch live as the US Supreme Court hears oral arguments in a bid by TikTok and its parent company, ByteDance, to block a law intended to force the sale of the app by 19 January 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. Chinese authorities could force it to hand over sensitive data on the huge number of Americans who use it or could influence the spread of information on the platform, they say.
