A cellphone displaying a photo of Elon Musk placed on a computer monitor filled with Twitter logos.

Musk challenged Parag to a public debate because he was dissatisfied with the ongoing court case.

"I hereby challenge @paraga to a public debate about the Twitter bot percentage," Musk wrote in a tweet on Saturday. "Let him prove to the public that Twitter has <5%>

Musk's proposed debate withAgrawal is unlikely to prove any facts that could not be proved at trial. The upcoming trial in the Delaware Court of Chancery could lead to testimony from Musk, or both. A source close to the company told CNBC that a debate is not going to happen outside of the trial.

Musk tried to have the trial delayed until February of next year. Musk's request for a delay was denied by the judge and the trial is scheduled to start on October 17. The sellers are at risk of being harmed by delay, according to the ruling.

In May, Musk replied to a thread about the process of estimating fake accounts with a poop.

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Trial is not about spam, Twitter says

Musk may be concerned that the trial won't focus enough on his claims that the number of fake accounts is low. "That's not what this case is about," William Savitt said at the hearing on the trial date.

According to the court filing, Musk has no right to leave the merger based on the number of fake accounts. "When Musk offered to buy the company, he didn't ask for anything and didn't make any representations about the number of false or fake accounts," the company said.

According to Musk's analysis, at least 10 percent of the active daily users on the platform are likely to be fake or spammer.

Musk's attempt to break the merger deal is centered on his claim that the public statements about the number of users are not accurate. Less than 5 percent of its daily active users are fake, according to SEC Filings.