The Supreme Court seemed likely to uphold a new law that could force TikTok to shut down in the U.S., with conservative and liberal justices alike expressing skepticism about the legal challenge.

The justices, who asked tough questions of both sides, showed skepticism toward arguments by lawyers for TikTok and its users.

The Supreme Court heard TikTok's case to toss out a ban just nine days before it will take effect. The Biden administration defended the measure on national security grounds.