Sign up for the daily Inside Washington email for exclusive US coverage and analysis sent to your inbox Get our free Inside Washington email Get our free Inside Washington email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Key to this was apparently Musk’s desperate need to be regarded as popular, the book claims. “You’re fired, you’re fired,” he told the engineer. “Biden’s tweet generated about three times the number of views as Musk’s,” Silverman writes, according to an extract published in Newsweek. Alongside these behind-the-scenes tantrums, Musk was also behaving increasingly erratically on Twitter, the book suggests.