 The summit comes at a critical time for Biden as he's under pressure to show he's fit to serve another four years as president. Following his faltering debate performance against Donald Trump that prompted some to call on Biden to drop out of the election, the president will hold a press conference Thursday to close out the summit. Boeing has agreed to plead guilty to criminal fraud over two deadly 737 MAX airplane crashes, one in 2018 and one in 2019. The Justice Department said Sunday the aircraft maker violated a 2021 settlement that protected the company from prosecution.