President Trump said Thursday there is an upside to rising oil prices as a result of the war against Iran — the U.S. will make money as a major producer. Mr. Trump, posting on Truth Social, was responding to oil prices that flirted with $100 per barrel as Tehran clamped down on tanker traffic through the Strait of Hormuz, where about 20% of the world’s oil supply transits. “The United States is the largest Oil Producer in the World, by far, so when oil prices go up, we make a lot of money,” Mr. Trump posted. Mr. Trump’s post on...