(COMBO) This combination of file pictures created on June 08, 2021, shows US President Joe Biden (L) speaking at the Eisenhower Executive Office Building in Washington, DC on June 2, 2021; and Chinese President Xi Jinping speaking on arrival at Macau's international airport on December 18, 2019. - President Joe Biden and Chinese counterpart Xi Jinping spoke by phone on July 28, 2022, on mounting tensions over Taiwan, a festering trade dispute and their bid to keep the superpower rivalry in check. The White House said the phone call started at 8:33 am in Washington (1233 GMT). A statement would be issued after the call ended, a spokesman said. While this was Biden's fifth talk with Xi since becoming president a year and a half ago, it's getting hard to mask deepening mistrust between the two countries. (Photo by MANDEL NGAN and Anthony WALLACE / AFP)