The US Republican Party officially nominated Donald Trump as its presidential candidate at its national party convention in Milwaukee, Wisconsin on Monday. Trump received the necessary majority of delegates’ votes at the party gathering, which began just two days after an attempt on his life that shocked the country. A short while earlier, Trump announced that he had picked JD Vance, a 39-year-old senator from Ohio, to be his vice presidential running-mate. “I have decided that the person best suited to assume the position of vice president of the United States is Senator JD Vance of the great…