Musk’s ‘Buyer’s Remorse’ Won’t Get Him Out of Twitter Deal (1)

Elon Musk formally and forcefully revived his assertion that Twitter Inc. has a serious bot problem, and threatened to walk away from his deal to buy the company if the social network doesn’t do more to prove its users are real people.

Legal experts widely speculated that Musk is using the bot issue as an excuse to abandon or renegotiate the deal, which has looked better and better for Twitter as the broader stock market has taken a dive in recent weeks. Twitter shares were up slightly Tuesday morning in New York.

In a securities filing on Monday, Musk ...