Minxin Pei is professor of government at Claremont McKenna College and a nonresident senior fellow of the German Marshall Fund of the United States.
Dangers at home the more pressing threat to each side's worldview

Joe Biden participates in a virtual meeting with Xi Jinping at the White House on Nov. 15: the outcome of the rivalry should become clear in the next 10 years. © Getty Images
Minxin Pei is professor of government at Claremont McKenna College and a nonresident senior fellow of the German Marshall Fund of the United States.