China and Canada have carried out tit-for-tat expulsions of diplomats, with Beijing responding in kind after Ottawa showed the door to a Chinese diplomat who was found trying to intimidate a Canadian politician and his family. The ethnic Chinese lawmaker had drawn Beijing’s wrath over his sponsorship of a Canadian parliamentary motion condemning China’s rough treatment of its Uyghur minority group. Sharp-elbowed, sharp-tongued “Wolf Warrior” diplomats have stoked concerns about Chinese influence operations in a number of host countries with their efforts to stifle exiled critics and opponents.