Everybody seems to agree that the Supreme Court is likely to uphold the TikTok ban:
Chief Justice John Roberts said the court couldn’t ignore congressional concerns that Beijing could use TikTok to spread propaganda and stockpile sensitive user data on Americans.
“It seems to me that you’re ignoring the major concern here of Congress, which was Chinese manipulation of the content and acquisition and harvesting of the content,” Roberts said.
Justice Elena Kagan said the law “is only targeted at this foreign corporation, which doesn’t have First Amendment rights.”
This isn't too surprising. Courts are usually very deferential to national security arguments.
TikTok's lawyer said the app will go dark in nine days if the court upholds the ban. There's no telling if this is real or just special pleading.
I continue to be (slightly) surprised that neither Congress nor the Justice Department tried to base the TikTok ban on the simple principle of reciprocity: we allow only apps from countries that allow our apps. Maybe that wouldn't have passed constitutional muster?