President Biden on Wednesday praised his “port envoy” John Porcari for doing a “heck of job” — twice calling him by the wrong first name — while discussing mounting shipping-container backlogs that threaten the timely delivery of everyday consumer goods, Christmas gifts and even the trees to put them under. Biden applauded Porcari’s work as he announced that the Port of Los Angeles would move to a 24/7 work schedule following the emergency example of the nearby Port of Long Beach, which expanded hours three weeks ago to alleviate the mounting supply chain crunch. “I especially want to thank Joe...