Shares in Twitter fell on Monday after Elon Musk announced he was pulling out of a $44bn (£36bn) deal to buy the social media platform.
Mr Musk backed away after claiming Twitter failed to provide enough information on the number of spam and fake accounts on the site.
Twitter plans to take legal action to make the deal go ahead and has hired a top US law firm.
Mr Musk tweeted saying Twitter would need to "disclose bot info" in court.
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