The official said Harris echoed President Joe Biden’s comment to Xi at an meeting between the two leaders earlier in the week that China and the US must keep lines of communication open to “responsibly manage the competition between our countries.” A White House official said Harris and Xi exchanged remarks Saturday while heading into a closed-door meeting at the Asia-Pacific Economic Cooperation forum’s summit in Bangkok. BANGKOK — US Vice President Kamala Harris spoke briefly with Chinese leader Xi Jinping on Saturday in another step toward keeping lines of communication open between the two biggest economies. The official spoke...