Iran warns Washington against a ground attack as regional diplomats push for to end the war. Thousands rally across all 50 states in "No Kings" protests over rising costs and Trump's handling of the Iran war. Major League Baseball introduces a "robot umpire" challenge system for the new season. Plus, pilgrims travel to a remote Taiwan temple in search of divine dreams. Watch the latest On Assignment Podcast Inside Iran: A video diary 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