U.S. President Donald Trump is seen in the Oval Office on Monday. (Kylie Cooper/Reuters) U.S. President Donald Trump has again threatened Oman as Iran says it is working with the Gulf Arab country on a plan to manage shipping through the Strait of Hormuz. Fully reopening the waterway has been a key U.S. demand. Meanwhile, the 60-day negotiating period to find a peace deal between the United States and Iran was expiring, with no word of an extension and both sides seemingly as far apart as they were at theRead more