Shadowy ad cabal GARM shuts down after Elon Musk’s X files antitrust suit over censorship New York Post The Global Alliance for Responsible Media is ‘discontinuing’ after Elon Musk’s X filed an antitrust lawsuit against it Business InsiderAdvertising Coalition Shuts Down After X, Owned by Elon Musk, Sues The New York TimesHow Elon Musk and X’s decision to sue advertisers may have just backfired MashableAdvertising group suspends brand safety unit after Elon Musk’s antitrust lawsuit CNBC