Rolling Stone claims that senior Trump officials have characterized the billionaire as incredibly unfunny, radically annoying, “crazy,” and potentially in need of regular, mandatory drug tests. The outlet reports:

President Donald Trump said on Thursday that he doesn't really need to have Elon Musk in his administration. "Elon has done a fantastic job. Look, he's sitting here, and I don't care. I don't need Elon for anything other than I happen to like him,

Elon Musk's presence in Trump's administration is reportedly unwelcome, with senior officials expressing frustration over his behavior and attempts at humor.