U.S. President Joe Biden and his Chinese counterpart Xi Jinping are expected to hold talks over the phone this spring as part of efforts to responsibly manage tensions between their countries, a senior administration official said Saturday."This leader-level channel is absolutely critical to maintaining direction in the relationship and following up on some of the issues" from when they met last time in person in November, the U.S. official said after a meeting between Biden's top security aide Jake Sullivan and China's top diplomat Wang Yi in Thailand.Sullivan and Wang had more than 12 hou…READ FULL ARTICLE