Twitter said it would sue Elon Musk to complete the $44-billion deal he has rejected and is "confident" it will prevail. The statement came as Musk's tumultuous takeover deal is now on the verge of collapse after the Tesla CEO sent a letter to Twitter's board Friday saying he was terminating the acquisition. In a letter to the Securities and Exchange Commission, Musk said Twitter has "not complied with its contractual obligations" surrounding the deal, namely giving Musk enough information to "make an independent assessment of the prevalence of fake or spam accounts on Twitter's platform."