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 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.

The Supreme Court ruled Friday that a controversial ban on TikTok may take effect this weekend, rejecting an appeal from the popular app’s owners that claimed the ban violated the First Amendment.