The Liberals have launched a complaint with Elections Ontario about videos being produced by the PC Party.
The party has expressed concern about "Ford Nation Live," a TV news-style video series that feature Ford campaign staffers interviewing supporters behind Ford Nation-branded microphones.
The Liberals say it makes it appear as though Ford is trying to pass off political advertising as media coverage - which could be a violation of election finance rules.
The Ford campaign has countered by saying it's not doing anything wrong.