Explainer-What happens after the TikTok ban?

Tik Tok logo, the U.S. flag and a judge gavel are seen in this illustration taken, August 6, 2024. REUTERS/Dado Ruvic/Illustration/File Photo

(Reuters) -The U.S. Supreme Court justices on Friday expressed skepticism about a challenge from TikTok and its Chinese parent company ByteDance against a law signed by President Joe Biden, which would force the sale or ban of the popular short-video app by Jan. 19 in the United States.

Some of the justices seemed to acknowledge Congress' national security concerns over TikTok, given its ownership by what lawmakers deemed a foreign adversary.