WASHINGTON — Senior adviser and assistant to the president Steve Witkoff told Breitbart News exclusively that the government of Iran has told him that the Iranians have agreed they do not want a nuclear weapon. Witkoff, who made the explosive revelation in an exclusive long-form on-camera interview with Breitbart News on Thursday at the White House, is leading negotiations for President Donald Trump with the Islamic Republic of Iran. Witkoff is expected to meet with the Iranians, possibly as soon as this weekend, for a fourth round of talks in Oman, after two previous discussions in Iran and another in...