Recent reports of election interference ring alarm bells about the vulnerability of the Canadian political process. We examine a different but potentially more perilous loophole in the electoral process beyond general elections to demonstrate how foreign actors could directly influence the prime ministership through the manipulation of party membership. We suggest that foreign actors could influence the selection process of party leadership and, consequently, the prime ministership, simply by purchasing party memberships that distribute ballots in leadership elections without identity verification. After introducing China and Russia's strategies to influence Canadian politics, we offer a few recommendations to address the party membership loophole. These include identity verification at the time of membership registration and ballot mail-in, flagging membership irregularities, additional and dedicated funding to political parties to build robust cybersecurity practices, and creating additional content in languages other than English or French to mitigate the influence of state–controlled or sponsored media on immigrant and diaspora communities.