U.S. Secretary of State Marco Rubio said President Donald Trump will make the case to China to take a "more active role" on Iran ahead of the U.S.-China summit on Thursday. “It’s in their interest to resolve this,” Rubio said in an interview with Fox News’ Sean Hannity. “We hope to convince them to play a more active role in getting Iran to walk away from what they’re doing now and trying to do now in the Persian Gulf.” Presidents Xi Jinping and Donald Trump are meeting on Thursday in Beijing for a U.S.-China summit where few breakthroughs are expected on divisive issues ranging from the Iran war, trade, technology and Taiwan