A TikTok ban might be one step closer to reality even if there are still some lingering doubts about whether a federal law will really go into effect on January 19.

The court heard oral arguments on TikTok’s bid to block a law that would lead to its ban in the U.S. starting Jan. 19 if it isn’t sold by its Chinese owner.

The lawyer for TikTok and its Chinese parent company ByteDance offered a warning during Supreme Court arguments over a law that would compel the sale of the short-video app or ban it in the United States: If Congress could do this to TikTok,

According to the Pew Research Center, more than 170 million Americans use TikTok. 6 in 10 teens are on the app and about half of TikTok's adult users say they regularly get news there, which is 17% of all U.

On Friday, the Supreme Court heard arguments regarding a law that would ban TikTok in the United States if its Chinese parent company, ByteDance, doesn’t sell the app by Jan. 19. The hugely popular platform’s stateside demise would have enormous implications for influencers — some of whom have built followings and livelihoods through the platform — but many of New York City’s top social media creators say they aren’t particularly stressed: They’ve already diversified their brands and grown followings on other platforms.