Javier Milei, the Argentinian president, has become the first foreign leader to meet Donald Trump as he flew into Florida for a visit to Mar-a-Lago. Mr Milei is due to meet Elon Musk in the coming hours where the pair are expected to discuss strategies to cut government spending. Mr Milei arrived on Thursday at Mr Trump’s Florida residence, where Mr Musk has also been holed up for several days, and will be the first foreign leader to congratulate Mr Trump in person on being re-elected US president. The brash libertarian economist will also hold informal talks with the Tesla,...