Supreme Court justices appeared to be skeptical toward TikTok's arguments when challenging a law that may result in it being banned.

Congress says the popular video app poses a looming threat to the nation’s security because of its Chinese owner. What the justices decide could determine if the app is shut down.

The Supreme Court signaled in oral arguments Friday that it may uphold the federal ban on TikTok, potentially leaving it up to President-elect Donald Trump to try and keep the app legal once he takes office — but the president-elect has limited options if the law is upheld, and any attempts to stop it could be challenged in court.

The Supreme Court justices sounded highly skeptical Friday of TikTok's free-speech defense, signaling they are not likely to strike down the law that could shut down the popular video site the day before President-elect Donald Trump takes the oath of office.

The Supreme Court seems likely to uphold a law that would ban TikTok in the United States beginning Jan. 19 unless the popular social media program is sold by its China-based parent company

He took the unusual step of filing court documents asking the Supreme Court to put the law on hold so that he could negotiate a deal for the sale of TikTok after he takes office.

By Andrew Chung, John Kruzel and David Shepardson WASHINGTON (Reuters) -Supreme Court justices indicated skepticism on Friday toward a challenge by TikTok and its Chinese parent company ByteDance to a law that would force a sale or ban the widely used short-video app by Jan.