While TikTok remains hugely popular in Brazil, Indonesia and other markets, its 170 million users in the United States are its most valuable.

The Supreme Court on Friday unanimously upheld the federal law banning TikTok beginning Sunday unless it's sold by its China-based parent company, holding that 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 United States.

Now that TikTok has finally reached the end of its legal options in the US to avoid a ban, somehow its future seems less clear than ever. The Supreme Court couldn’t have been more direct: the Protecting Americans from Foreign Adversary Controlled Applications Act,