The Chinese government seized on a scheduling delay during Vice President Kamala Harris’ ongoing trip to Vietnam to undercut the White House’s planned outreach regarding COVID-19 vaccine supply, according to a report Wednesday. Harris was set to announce a U.S. donation of one million doses of Pfizer’s COVID-19 vaccine as part of a broader effort to cultivate closer ties with Vietnam and counteract Beijing’s influence in the region. When Harris’ team experienced a three-hour delay ahead of her planned meeting with Vietnamese President Nguyen Xuan Phuc, China sent its own diplomat to meet with Vietnamese Prime Minister Pham Minh Chinh...