https://www.vice.com/en_us/article/jgm3pk/twitter-and-elon-musk-are-now-at-war

Nine days ago, Twitter CEO Parag Agrawal was merrily announcing that the social media platform was “excited” to bring Elon Musk onto its board, saying in a tweet that he believed the CEO of Tesla and SpaceX would “bring great value” to the company.

Even then, this was a clear attempt to placate Musk, after he had purchased enough Twitter stock to become both its largest shareholder and its biggest threat.