Without doubt, the remedy Congress and the President chose here is dramatic,” Justice Neil Gorsuch wrote in a concurring opinion. “Whether this law will succeed in achieving its ends, I do not know.”

The decision came a week after the justices heard a First Amendment challenge to a law aimed at the wildly popular short-form video platform used by 170 million Americans that the government fears could be influenced by China.

Donald Trump had asked the Supreme Court to delay TikTok’s ban-or-sale law to give him an opportunity to act once he returns to the White House.