https://financialpost.com/ Don Bilson inadvertently waded into a minor Canadian political maelstrom over foreign investment when he dashed off a 250-word note on Jan. 19 suggesting Australia’s BHP Group Ltd. may want to buy Saskatoon-based Nutrien Ltd. “I made an offhand remark,” the head of event-driven research at Gordon Haskett Research Advisors in New York told …