Protests against China's strict "zero-COVID" policies resurfaced in Shanghai and Beijing on Sunday afternoon, the latest in a series of demonstrations. SHANGHAI, China — Protesters angered by strict anti-virus measures called for China’s powerful leader to resign, an unprecedented rebuke as authorities in at least eight cities struggled to suppress demonstrations Sunday that represent a rare direct challenge to the ruling Communist Party. Police using pepper spray drove away demonstrators in Shanghai who called for Xi Jinping to step down and an end to one-party rule, but hours later people rallied again in the same spot. Police again broke up...