Wall Street Journal: “Xi is visiting President Trump in Washington this week for a summit that will cover weighty topics including trade, artificial-intelligence safety and relations with Taiwan. But the elephant in the room will be China’s continuing support for Iran.”“China has become the only major buyer of Iranian oil, despite U.S. sanctions meant to stop the flows, providing billions of dollars for Tehran this year. Chinese front companies help launder the funds, while Chinese banks route the transactions through the country’s financial plumbing, using China’s currency, to evade U.S. oversight.”“On the battlefield, satellite imagery procured from Chinese entities has been linked by U.S. officials to an Iranian strike that killed three American troops… Chinese companies have also helped provide chemical precursors used to manufacture the types of ballistic missiles used in the attack.”