The return of the 737 MAX, Boeing's best-selling model, is the latest sign of disruption to new aircraft deliveries from a breakdown in the aerospace industry's decades-old duty-free status.

Reporters ask President Trump about the status of his negotiations with China and, in particular, whether he has spoken to Chinese President Xi Jinping amid the ongoing trade war.

China and the European Union may be looking to strengthen trade ties as Beijing looks to ramp up exports to the EU as trade with the U.S. falters under severe tariffs.