The U.S. Federal Trade Commission weighed in on Friday on Elon Musk's lawsuit seeking to block OpenAI's conversion to a public company, pointing out legal doctrines that could support his claim that OpenAI and Microsoft engaged in anticompetitive practices. While it did not officially support either side, the FTC offered legal analysis that could aid Musk at a Tuesday hearing in Oakland, California. Musk co-founded OpenAI and owns AI startup xAI. A spokesperson for Microsoft declined to comment.