Washington — President Trump has sent conflicting messages about the Strait of Hormuz over the last few weeks as the world's oil supply has been choked by the Iran war.  In a prime-time address Wednesday, Mr. Trump declared that Iran "has been essentially decimated" and "when the conflict is over, the strait will open up naturally."  "The hard part is done," Mr. Trump said. But at the same time, he was telling other countries to step up and "take care" of the strait. "They must cherish it. They