I take a great interest in the work of third parties, since I participate in one, but I certainly didn't know the extent to which foreign actors were funding third party campaigns or campaigns against Canadian parliamentarians running for office or offering for the first time. That information came out after the election, so I only became alerted to it—as someone who is interested in these matters—after individuals were elected.
On December 11th, 2018. See this statement in context.