The Supreme Court signaled in oral arguments Friday that it may uphold the federal ban on TikTok, potentially leaving it up to President-elect Donald Trump to try and keep the app legal once he takes office — but the president-elect has limited options if the law is upheld, and any attempts to stop it could be challenged in court.

TikTok and ByteDance, as well as some users who post content on the app, have challenged a law that would compel the sale of the social media platform by Jan. 19 or ban it in the United States. The law was passed by Congress with strong bipartisan support last year and signed by outgoing Democratic President Joe Biden,

TikTok content creator Tiffany Cianci is doing all she can to persuade President-elect Donald Trump to save the popular social media app, which the government calls a national security risk.

With Republicans back in control of both chambers of Congress and calling for new regulation of Big Tech, the Meta CEO is realigning with Trump.

After visiting President-elect Donald J. Trump in November, Mr. Zuckerberg decided to relax Meta’s speech policies. He asked a small team to carry out his goals within weeks. The repercussions are just beginning.

Sen. Markwayne Mullin (R-Okla.) said Meta CEO Mark Zuckerberg met with President-elect Trump a day ahead of announcing the social media network will eliminate its fact-checking program to prioritize free speech.