Calls by U.S. President Donald Trump for help to reopen the Strait of Hormuz appear to fall on deaf ears. Tehran's ambassador to Saudi Arabia tells Reuters that Iran's relations with Gulf states require a "serious review." Trump says a deal with Cuba is close but hints action is possible. Airline bosses urge Congress to end the partial government shutdown. And One Battle After Another wins best picture at the Oscars. On Assignment: The Oscars industrial complex Listen to the Morning Bid podcast here. Sign up for the Reuters Econ World newsletter here. Listen to the Reuters Econ World podcast here. Visit the Thomson Reuters Privacy Statement for information on our privacy and data protection practices. You may also visit megaphone.fm/adchoices to opt out of targeted advertising. Learn more about your ad choices. Visit megaphone.fm/adchoices