LOADING ERROR LOADING Elon Musk said Monday that X, formerly known as Twitter, has “no choice” but to file a defamation lawsuit against the Anti-Defamation League amid an ongoing slump in advertising revenue. Musk said the tech giant’s advertising revenue was down 60% in the U.S. following his acquisition of the company last year for $44 billion. His tenure has been rocky, to say the least: X has laid off thousands of staffers and Musk has enacted dramatic changes to limit features, paywall others and promote the site as a new bastion for free speech. That included an amnesty program...