TikTok takes legal action against Montana's ban.

TikTok has filed a federal lawsuit against Montana after the state passed a law last week intended to ban the app from being downloaded within its borders. The lawsuit argues that banning a hugely popular social media app amounts to an illegal suppression of free speech tantamount to censorship. Lawyers for Chinese-owned TikTok also argue that the national security threat raised by officials in Montana is not something that state officials can attempt to regulate, since foreign affairs and national security matters are a federal issue.