The Supreme Court is considering the constitutionality of a law that would ban TikTok for the 170 million people who use the app in the U.S. If the court upholds the law, as other courts have done, the ban will go into effect on Sunday, Jan. 19.

The ban would go into effect Sunday, pending a Supreme Court decision that is expected to come soon (but it sure looks like America’s highest court will keep the law that bans TikTok in place). TikTok’s owner,

The move is under discussion as the Chinese-owned app faces a Sunday deadline to find a new buyer or shut down in the United States.

The federal ban on TikTok is set to take effect Sunday unless the Supreme Court steps in to stop it, and while reports Wednesday suggest President-elect Donald Trump is mulling an executive order that would quickly reinstate the app, he may have limited options should the law be upheld—and his attempts to stop it could be challenged in court.

President-elect Donald Trump is considering issuing an executive order to try to save TikTok as the deadline nears that could see the platform banned.