Social media platform TikTok is hurtling toward a U.S. ban that could upend its business and frustrate more than 150 million American users -- unless President-elect Donald Trump finds a way to reverse the policy.

The president-elect promised to ‘save’ the social media app, which faces a deadline early next year to find a non-China-based owner.

So while it's unclear how Trump would pursue a reversal of TikTok's expected ban, there are a few routes he could take. The Associated Press reports that Trump could push Congress to repeal the law or issue an executive order to repeal the ban, which an expert told the AP would not be lawful.