Tesla and SpaceX CEO Elon Musk, left, and president-elect Donald Trump in October.Donald Trump would “muzzle” Elon Musk if he were not happy with his attacks towards the UK, according to a former aide.The world’s richest man and the president-elect’s close ally has shaken Westminster as he repeatedly slammed the UK to his 210m followers on X in recent weeks.Honing in on the grooming gang scandal, he called safeguarding minister Jess Phillips a “rape genocide apologist” and said she should be jailed.He has also