OTTAWA—Conservative MP Michael Chong is accusing the federal government of failing to inform him about allegations that Beijing wanted to intimidate his family as part of China’s state interference in Canadian politics. In an emailed statement, Mendicino’s press secretary, Audrey Champoux, did not say whether the government knew of the information made public Monday. It is up to CSIS, and CSIS alone, to decide what information to share,” Champoux’s statement said. Chong, the MP for Wellington—Halton Hills, is the Conservative party’s shadow minister of foreign affairs. In recent months, concerns about China’s alleged interference in Canadian politics have been fuelled by a series of media reports.