The Supreme Court upheld on Friday a law banning TikTok in the United States on national security grounds if its Chinese parent company ByteDance does not sell it, putting the popular short-video app on track to go dark in just two days.

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 US Supreme Court has ended TikTok’s nine-month legal battle, forcing leaders both within the company and in Beijing to consider a dwindling set of alternatives for keeping the popular video-sharing app alive.