In a collision between free speech and national security, the Supreme Court will hear arguments over the fate of TikTok, a digital age cultural phenomenon that roughly half the U.S. population uses for entertainment and information.

At issue is the constitutionality of legislation passed by Congress and signed into federal law in April 2024 that could force TikTok’s Chinese owners to sell the app to a U.S.

The nation’s highest court is preparing to hear the case against banning one of the most popular social media platforms in the U.S.