The app had more than 170 million monthly users in the U.S. The black-out is the result of a law forcing the service offline unless it sheds its ties to ByteDance, its China-based parent company.

The Supreme Court ruled Friday it will uphold a law that bans TikTok if its owner, ByteDance, does not sell its U.S. assets by Sunday. TikTok’s lawyers filed a free speech challenge that sought to block a ban on the basis of the First Amendment.

"There's no legal basis for any kind of 'extension'" to keep the popular social media app running, warned GOP Sens. Tom Cotton and Pete Ricketts on Sunday.

The president-elect Sunday pledged an executive order, hours into his second term, returning access for American users, at least temporarily.

The President-elect will decide the ultimate fate of the social media app set to be banned in the U.S. the day before his inauguration.

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

When the Supreme Court justices first shared an inaugural stage with Donald Trump, they heard the new president deliver a 16-minute declaration against the country and vow, “This American carnage stops right here and stops right now.

The Supreme Court ruled against President-elect Donald Trump twice in the days leading up to his inauguration.