I believe what has been reported in the press regarding foreign interference in the 2019 and 2021 campaign because the Liberal government has admitted it's actually been true. The information is coming from CSIS officials, who obviously feel so concerned about what's going on in terms of the ignoring of briefings on foreign interference that they obviously feel the only course of action they have right now is to be whistle-blowers within the press.
On May 11th, 2023. See this statement in context.