President Donald Trump said Monday that he is calling off an attack on Iran planned for Tuesday because regional leaders had urged him to allow negotiations to continue and that a “very acceptable” deal for the U.S. was at hand.Trump wrote in a post on Truth Social that the leaders of Qatar, Saudi Arabia and the United Arab Emirates asked him “to hold off on our planned Military attack of the Islamic Republic of Iran, which was scheduled for tomorrow, in that serious negotiations are now taking place, and that, in their opinion, as Great Leaders and Allies, a Deal...