The result was unanimous, in a per curiam opinion and two concurrences (by Sotomayor and Gorsuch).
The nub, as Justice Gorsuch put it at the end of his concurrence, was this: “Speaking with and in favor of a foreign adversary is one thing. Allowing a foreign adversary to spy on Americans is
another.”
TikTok’s survival now depends on political action by Congress and the President.