Advertisers have been fleeing the site formerly known as Twitter over concerns about their ads showing up next to pro-Nazi content and hate speech on the platform.
Musk has faced accusations of tolerating antisemitic messages on X, and the content on the platform has gained increased scrutiny since the war between Israel and Hamas began.
“Every person on social media should be verified by their name. It’s a national security threat,” said the former South Carolina governor and U.N. ambassador on Tuesday.
The two cases are the first of several controversies appearing before the high court in the coming months about free speech protections online.
The justices said they would hear arguments in a lawsuit accusing administration officials of unconstitutionally squelching conservative points of view.
The Foundation for Individual Rights and Expression, a free speech advocacy group, opened a new front in its ongoing legal battle over New York's attempts to regulate online speech.
TikTok and Montana faced off in federal court on Thursday in a case filed by the video sharing app and five content creators who want the court to block the state’s ban on the platform.
Two Democratic members of Congress sent a letter Thursday to CEOs of Meta and X expressing “serious concerns” about the emergence of AI-generated political ads on their platforms.