“In 2024, Congress passed the Protecting Americans From Foreign Adversary Controlled Applications Act, which prohibited operating or hosting “a foreign adversary controlled application (e.g., TikTok)” within the United States. The law required TikTok to find a buyer by January 19, 2025, or else shut down operations within the United States.
Ultimately, neither happened…Trump issued the executive order on his first day, “instructing the Attorney General not to take any action to enforce the Act for a period of 75 days from today.” He has since issued two additional orders further extending the deadline
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“But no president has the authority to simply postpone the enforcement of a law passed by Congress. The fact that Congress seems content to let Trump decline to enforce it does not obviate the law itself. And for that reason, if Congress will not repeal the law, then it should insist Trump enforce it.”
https://reason.com/2025/07/07/either-repeal-or-enforce-but-ideally-repeal-the-tiktok-ban