Elon Musk has picked another fight in Donald Trump’s inner circle with a Christmas challenge to Robert F. Kennedy Jr. Musk posted a photo of himself on his platform X, formerly known as Twitter, dressed up as Santa Claus and posing in front of a lit-up tree with the caption: “Ozempic Santa.” He followed up with a message that quickly went viral in MAGA world: “Like Cocaine Bear, but Santa and Ozempic!”