Elon Musk
Elon Musk, X's owner.
  • X is suing a group of advertisers, alleging they violated antitrust law.
  • The suit alleges an advertising group persuaded top brands to withhold billions in ad revenue from X.
  • X CEO Linda Yaccarino said the boycott undermined the marketplace of ideas.

Elon Musk's X is suing a group of advertisers, alleging that they violated antitrust laws by ganging up on the social-media company in an advertising boycott.

X CEO Linda Yaccarino posted a video and an open letter on the platform Tuesday announcing the lawsuit against the Global Alliance for Responsible Media, the World Federation of Advertisers, and the GARM members CVS Health, Mars, Ørsted, and Unilever.