Hours after US President Donald Trump spoke with his Chinese counterpart on Thursday night and shared optimistic remarks about the call on social media, a public feud escalated between him and his biggest political donor.Elon Musk, once Trump’s most high-profile donor and self-proclaimed “first buddy”, lambasted the “big beautiful bill” earlier this week – one of Trump’s key domestic policy initiatives that was recently passed by the House – lighting the fuse on a public fight that quickly...