The Supreme Court delivered a major blow to TikTok by declining to block a law that would likely lead to the social media platform being banned in the United States within days.

After years on the brink, TikTok’s clock has run out as the U.S. Supreme Court today upheld a lower court ruling that the app owned by China’s ByteDance must sell itself or be banned in the U.S. on Jan.

That decision shifts the focus to whether President-elect Donald Trump can intervene after he takes office on Monday.

TikTok to be banned for 170 million U.S. users, disrupting campaigns and forcing brands to pivot organic and paid strategies.

TikTok could fade to black in the U.S. in a matter of days after the Supreme Court rejected its appeal to halt a law that will ban the popular video app as of Jan. 19 unless Chinese parent ByteDance sells its stake.