The U.S. Supreme Court appears poised to uphold a law that would ban TikTok starting January 19 unless its Chinese parent company ByteDance sells it to a U.S. buyer. Backers of the TikTok ban claim the popular social media app, which has some 170 million users in the U.S., is a national security risk. Critics of the ban say it’s motivated by anti-Chinese sentiment, threatens free speech, and warn it threatens the livelihoods of many content creators and small business owners who rely on TikTok.

In more Supreme Court news, the justices agreed to review the constitutionality of the Affordable Care Act’s no-cost coverage for a number of preventive care services, including some cancer screenings, HIV prevention drugs and heart statins.