Microsoft removes Twitter from ad program, Musk threatens lawsuit.

Microsoft has withdrawn from Twitter after balking at the new fees for API access, which start at $42k per month for any more than zero pull requests on the "cheap" tier. Microsoft will still offer users of its Advertising platform the ability to spend their campaign cash across Facebook, Instagram, and LinkedIn channels. Elon Musk threatened to sue Microsoft for training "illegally using Twitter data." Twitter has not yet clarified what Musk meant by this.