As the federal government's lawyer argued the short-form app posed a national security threat, TikTok and some of its users ...

TikTok faced off with the U.S. government in federal court, arguing a law that could ban the platform was unconstitutional.

A court is hearing oral arguments Monday in TikTok's challenge to a law that could lead to the app being banned in the U.S.

The U.S. government and TikTok will go head-to-head in federal court on Monday as oral arguments begin in a consequential ...