US President Donald Trump will host a meeting of world leaders at the United Nations this month to push for reform of the global body that he once dismissed as a "club" for people "to have a good time." World leaders at the September 18 event will be asked to support a 10-point political declaration that backs UN Secretary-General Antonio Guterres "in making concrete changes to the United Nations," according to the document obtained by AFP on Friday. Attending his first UN gathering of world leaders, Trump is scheduled to address the General Assembly on September 19, on the first...