Washington — The Supreme Court on Friday upheld a new law that would lead to a ban of the social media platform TikTok, clearing the way for the widely popular app to be forced to shutter in the U.S. as soon as Sunday.

Donald Trump had asked the Supreme Court to delay TikTok’s ban-or-sale law to give him an opportunity to act once he returns to the White House.

The Supreme Court has upheld the federal law banning TikTok beginning Sunday unless it’s sold by its China-based parent company, holding the risk to national security posed by its ties to China overcomes concerns about limiting speech by the app or its 170 million users in the U.