Melania Trump has never met Kim Jong-un, or even spoken to him, but US President Donald Trump said on Monday that his wife has “gotten to know” the North Korean leader and, like him, believes in the reclusive country’s potential.Trump, who has met Kim three times since last year as he tries to persuade him to give up the North Korean nuclear weapons programme, told a news conference at the G7 summit in France that he had come to know Kim “extremely well” and suggested his wife had too.“The…